20167875

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 44972928

約数和(自身を除く): 24805053

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 125, 175, 195, 197, 225, 273, 315, 325, 375, 455, 525, 585, 591, 819, 875, 975, 985, 1125, 1365, 1379, 1575, 1625, 1773, 2275, 2561, 2625, 2925, 2955, 4095, 4137, 4875, 4925, 6825, 6895, 7683, 7875, 8865, 11375, 12411, 12805, 14625, 14775, 17927, 20475, 20685, 23049, 24625, 34125, 34475, 38415, 44325, 53781, 62055, 64025, 73875, 89635, 102375, 103425, 115245, 161343, 172375, 192075, 221625, 268905, 310275, 320125, 448175, 517125, 576225, 806715, 960375, 1344525, 1551375, 2240875, 2881125, 4033575, 6722625, 20167875]

約数ペア:

[(1, 20167875), (3, 6722625), (5, 4033575), (7, 2881125), (9, 2240875), (13, 1551375), (15, 1344525), (21, 960375), (25, 806715), (35, 576225), (39, 517125), (45, 448175), (63, 320125), (65, 310275), (75, 268905), (91, 221625), (105, 192075), (117, 172375), (125, 161343), (175, 115245), (195, 103425), (197, 102375), (225, 89635), (273, 73875), (315, 64025), (325, 62055), (375, 53781), (455, 44325), (525, 38415), (585, 34475), (591, 34125), (819, 24625), (875, 23049), (975, 20685), (985, 20475), (1125, 17927), (1365, 14775), (1379, 14625), (1575, 12805), (1625, 12411), (1773, 11375), (2275, 8865), (2561, 7875), (2625, 7683), (2925, 6895), (2955, 6825), (4095, 4925), (4137, 4875)]