640537500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:111

約数の個数: 288

約数和(自身を含む): 2099865600

約数和(自身を除く): 1459328100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 29, 30, 31, 38, 50, 57, 58, 60, 62, 75, 76, 87, 93, 95, 100, 114, 116, 124, 125, 145, 150, 155, 174, 186, 190, 228, 250, 285, 290, 300, 310, 348, 372, 375, 380, 435, 465, 475, 500, 551, 570, 580, 589, 620, 625, 725, 750, 775, 870, 899, 930, 950, 1102, 1140, 1178, 1250, 1425, 1450, 1500, 1550, 1653, 1740, 1767, 1798, 1860, 1875, 1900, 2175, 2204, 2325, 2356, 2375, 2500, 2697, 2755, 2850, 2900, 2945, 3100, 3125, 3306, 3534, 3596, 3625, 3750, 3875, 4350, 4495, 4650, 4750, 5394, 5510, 5700, 5890, 6250, 6612, 7068, 7125, 7250, 7500, 7750, 8265, 8700, 8835, 8990, 9300, 9375, 9500, 10788, 10875, 11020, 11625, 11780, 11875, 12500, 13485, 13775, 14250, 14500, 14725, 15500, 16530, 17081, 17670, 17980, 18125, 18750, 19375, 21750, 22475, 23250, 23750, 26970, 27550, 28500, 29450, 33060, 34162, 35340, 35625, 36250, 37500, 38750, 41325, 43500, 44175, 44950, 46500, 47500, 51243, 53940, 54375, 55100, 58125, 58900, 59375, 67425, 68324, 68875, 71250, 72500, 73625, 77500, 82650, 85405, 88350, 89900, 90625, 96875, 102486, 108750, 112375, 116250, 118750, 134850, 137750, 142500, 147250, 165300, 170810, 176700, 178125, 181250, 193750, 204972, 206625, 217500, 220875, 224750, 232500, 237500, 256215, 269700, 271875, 275500, 290625, 294500, 337125, 341620, 344375, 356250, 362500, 368125, 387500, 413250, 427025, 441750, 449500, 512430, 543750, 561875, 581250, 674250, 688750, 712500, 736250, 826500, 854050, 883500, 1024860, 1033125, 1087500, 1104375, 1123750, 1162500, 1281075, 1348500, 1377500, 1472500, 1685625, 1708100, 1721875, 1840625, 2066250, 2135125, 2208750, 2247500, 2562150, 2809375, 3371250, 3443750, 3681250, 4132500, 4270250, 4417500, 5124300, 5165625, 5521875, 5618750, 6405375, 6742500, 6887500, 7362500, 8428125, 8540500, 10331250, 10675625, 11043750, 11237500, 12810750, 16856250, 20662500, 21351250, 22087500, 25621500, 32026875, 33712500, 42702500, 53378125, 64053750, 106756250, 128107500, 160134375, 213512500, 320268750, 640537500]

約数ペア:

[(1, 640537500), (2, 320268750), (3, 213512500), (4, 160134375), (5, 128107500), (6, 106756250), (10, 64053750), (12, 53378125), (15, 42702500), (19, 33712500), (20, 32026875), (25, 25621500), (29, 22087500), (30, 21351250), (31, 20662500), (38, 16856250), (50, 12810750), (57, 11237500), (58, 11043750), (60, 10675625), (62, 10331250), (75, 8540500), (76, 8428125), (87, 7362500), (93, 6887500), (95, 6742500), (100, 6405375), (114, 5618750), (116, 5521875), (124, 5165625), (125, 5124300), (145, 4417500), (150, 4270250), (155, 4132500), (174, 3681250), (186, 3443750), (190, 3371250), (228, 2809375), (250, 2562150), (285, 2247500), (290, 2208750), (300, 2135125), (310, 2066250), (348, 1840625), (372, 1721875), (375, 1708100), (380, 1685625), (435, 1472500), (465, 1377500), (475, 1348500), (500, 1281075), (551, 1162500), (570, 1123750), (580, 1104375), (589, 1087500), (620, 1033125), (625, 1024860), (725, 883500), (750, 854050), (775, 826500), (870, 736250), (899, 712500), (930, 688750), (950, 674250), (1102, 581250), (1140, 561875), (1178, 543750), (1250, 512430), (1425, 449500), (1450, 441750), (1500, 427025), (1550, 413250), (1653, 387500), (1740, 368125), (1767, 362500), (1798, 356250), (1860, 344375), (1875, 341620), (1900, 337125), (2175, 294500), (2204, 290625), (2325, 275500), (2356, 271875), (2375, 269700), (2500, 256215), (2697, 237500), (2755, 232500), (2850, 224750), (2900, 220875), (2945, 217500), (3100, 206625), (3125, 204972), (3306, 193750), (3534, 181250), (3596, 178125), (3625, 176700), (3750, 170810), (3875, 165300), (4350, 147250), (4495, 142500), (4650, 137750), (4750, 134850), (5394, 118750), (5510, 116250), (5700, 112375), (5890, 108750), (6250, 102486), (6612, 96875), (7068, 90625), (7125, 89900), (7250, 88350), (7500, 85405), (7750, 82650), (8265, 77500), (8700, 73625), (8835, 72500), (8990, 71250), (9300, 68875), (9375, 68324), (9500, 67425), (10788, 59375), (10875, 58900), (11020, 58125), (11625, 55100), (11780, 54375), (11875, 53940), (12500, 51243), (13485, 47500), (13775, 46500), (14250, 44950), (14500, 44175), (14725, 43500), (15500, 41325), (16530, 38750), (17081, 37500), (17670, 36250), (17980, 35625), (18125, 35340), (18750, 34162), (19375, 33060), (21750, 29450), (22475, 28500), (23250, 27550), (23750, 26970)]