20320500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 192

約数和(自身を含む): 67092480

約数和(自身を除く): 46771980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 25, 30, 31, 38, 46, 50, 57, 60, 62, 69, 75, 76, 92, 93, 95, 100, 114, 115, 124, 125, 138, 150, 155, 186, 190, 228, 230, 250, 276, 285, 300, 310, 345, 372, 375, 380, 437, 460, 465, 475, 500, 570, 575, 589, 620, 690, 713, 750, 775, 874, 930, 950, 1140, 1150, 1178, 1311, 1380, 1425, 1426, 1500, 1550, 1725, 1748, 1767, 1860, 1900, 2139, 2185, 2300, 2325, 2356, 2375, 2622, 2850, 2852, 2875, 2945, 3100, 3450, 3534, 3565, 3875, 4278, 4370, 4650, 4750, 5244, 5700, 5750, 5890, 6555, 6900, 7068, 7125, 7130, 7750, 8556, 8625, 8740, 8835, 9300, 9500, 10695, 10925, 11500, 11625, 11780, 13110, 13547, 14250, 14260, 14725, 15500, 17250, 17670, 17825, 21390, 21850, 23250, 26220, 27094, 28500, 29450, 32775, 34500, 35340, 35650, 40641, 42780, 43700, 44175, 46500, 53475, 54188, 54625, 58900, 65550, 67735, 71300, 73625, 81282, 88350, 89125, 106950, 109250, 131100, 135470, 147250, 162564, 163875, 176700, 178250, 203205, 213900, 218500, 220875, 267375, 270940, 294500, 327750, 338675, 356500, 406410, 441750, 534750, 655500, 677350, 812820, 883500, 1016025, 1069500, 1354700, 1693375, 2032050, 3386750, 4064100, 5080125, 6773500, 10160250, 20320500]

約数ペア:

[(1, 20320500), (2, 10160250), (3, 6773500), (4, 5080125), (5, 4064100), (6, 3386750), (10, 2032050), (12, 1693375), (15, 1354700), (19, 1069500), (20, 1016025), (23, 883500), (25, 812820), (30, 677350), (31, 655500), (38, 534750), (46, 441750), (50, 406410), (57, 356500), (60, 338675), (62, 327750), (69, 294500), (75, 270940), (76, 267375), (92, 220875), (93, 218500), (95, 213900), (100, 203205), (114, 178250), (115, 176700), (124, 163875), (125, 162564), (138, 147250), (150, 135470), (155, 131100), (186, 109250), (190, 106950), (228, 89125), (230, 88350), (250, 81282), (276, 73625), (285, 71300), (300, 67735), (310, 65550), (345, 58900), (372, 54625), (375, 54188), (380, 53475), (437, 46500), (460, 44175), (465, 43700), (475, 42780), (500, 40641), (570, 35650), (575, 35340), (589, 34500), (620, 32775), (690, 29450), (713, 28500), (750, 27094), (775, 26220), (874, 23250), (930, 21850), (950, 21390), (1140, 17825), (1150, 17670), (1178, 17250), (1311, 15500), (1380, 14725), (1425, 14260), (1426, 14250), (1500, 13547), (1550, 13110), (1725, 11780), (1748, 11625), (1767, 11500), (1860, 10925), (1900, 10695), (2139, 9500), (2185, 9300), (2300, 8835), (2325, 8740), (2356, 8625), (2375, 8556), (2622, 7750), (2850, 7130), (2852, 7125), (2875, 7068), (2945, 6900), (3100, 6555), (3450, 5890), (3534, 5750), (3565, 5700), (3875, 5244), (4278, 4750), (4370, 4650)]