20377500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 240

約数和(自身を含む): 73476480

約数和(自身を除く): 53098980

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 19, 20, 22, 25, 26, 30, 33, 38, 39, 44, 50, 52, 55, 57, 60, 65, 66, 75, 76, 78, 95, 100, 110, 114, 125, 130, 132, 143, 150, 156, 165, 190, 195, 209, 220, 228, 247, 250, 260, 275, 285, 286, 300, 325, 330, 375, 380, 390, 418, 429, 475, 494, 500, 550, 570, 572, 625, 627, 650, 660, 715, 741, 750, 780, 825, 836, 858, 950, 975, 988, 1045, 1100, 1140, 1235, 1250, 1254, 1300, 1375, 1425, 1430, 1482, 1500, 1625, 1650, 1716, 1875, 1900, 1950, 2090, 2145, 2375, 2470, 2500, 2508, 2717, 2750, 2850, 2860, 2964, 3135, 3250, 3300, 3575, 3705, 3750, 3900, 4125, 4180, 4290, 4750, 4875, 4940, 5225, 5434, 5500, 5700, 6175, 6270, 6500, 6875, 7125, 7150, 7410, 7500, 8125, 8151, 8250, 8580, 9500, 9750, 10450, 10725, 10868, 11875, 12350, 12540, 13585, 13750, 14250, 14300, 14820, 15675, 16250, 16302, 16500, 17875, 18525, 19500, 20625, 20900, 21450, 23750, 24375, 24700, 26125, 27170, 27500, 28500, 30875, 31350, 32500, 32604, 35625, 35750, 37050, 40755, 41250, 42900, 47500, 48750, 52250, 53625, 54340, 61750, 62700, 67925, 71250, 71500, 74100, 78375, 81510, 82500, 89375, 92625, 97500, 104500, 107250, 123500, 130625, 135850, 142500, 154375, 156750, 163020, 178750, 185250, 203775, 214500, 261250, 268125, 271700, 308750, 313500, 339625, 357500, 370500, 391875, 407550, 463125, 522500, 536250, 617500, 679250, 783750, 815100, 926250, 1018875, 1072500, 1358500, 1567500, 1698125, 1852500, 2037750, 3396250, 4075500, 5094375, 6792500, 10188750, 20377500]

約数ペア:

[(1, 20377500), (2, 10188750), (3, 6792500), (4, 5094375), (5, 4075500), (6, 3396250), (10, 2037750), (11, 1852500), (12, 1698125), (13, 1567500), (15, 1358500), (19, 1072500), (20, 1018875), (22, 926250), (25, 815100), (26, 783750), (30, 679250), (33, 617500), (38, 536250), (39, 522500), (44, 463125), (50, 407550), (52, 391875), (55, 370500), (57, 357500), (60, 339625), (65, 313500), (66, 308750), (75, 271700), (76, 268125), (78, 261250), (95, 214500), (100, 203775), (110, 185250), (114, 178750), (125, 163020), (130, 156750), (132, 154375), (143, 142500), (150, 135850), (156, 130625), (165, 123500), (190, 107250), (195, 104500), (209, 97500), (220, 92625), (228, 89375), (247, 82500), (250, 81510), (260, 78375), (275, 74100), (285, 71500), (286, 71250), (300, 67925), (325, 62700), (330, 61750), (375, 54340), (380, 53625), (390, 52250), (418, 48750), (429, 47500), (475, 42900), (494, 41250), (500, 40755), (550, 37050), (570, 35750), (572, 35625), (625, 32604), (627, 32500), (650, 31350), (660, 30875), (715, 28500), (741, 27500), (750, 27170), (780, 26125), (825, 24700), (836, 24375), (858, 23750), (950, 21450), (975, 20900), (988, 20625), (1045, 19500), (1100, 18525), (1140, 17875), (1235, 16500), (1250, 16302), (1254, 16250), (1300, 15675), (1375, 14820), (1425, 14300), (1430, 14250), (1482, 13750), (1500, 13585), (1625, 12540), (1650, 12350), (1716, 11875), (1875, 10868), (1900, 10725), (1950, 10450), (2090, 9750), (2145, 9500), (2375, 8580), (2470, 8250), (2500, 8151), (2508, 8125), (2717, 7500), (2750, 7410), (2850, 7150), (2860, 7125), (2964, 6875), (3135, 6500), (3250, 6270), (3300, 6175), (3575, 5700), (3705, 5500), (3750, 5434), (3900, 5225), (4125, 4940), (4180, 4875), (4290, 4750)]