31121475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 68138496

約数和(自身を除く): 37017021

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 51, 55, 75, 77, 85, 105, 119, 165, 175, 187, 231, 255, 275, 317, 357, 385, 425, 525, 561, 595, 825, 935, 951, 1155, 1275, 1309, 1585, 1785, 1925, 2219, 2805, 2975, 3487, 3927, 4675, 4755, 5389, 5775, 6545, 6657, 7925, 8925, 10461, 11095, 14025, 16167, 17435, 19635, 23775, 24409, 26945, 32725, 33285, 37723, 52305, 55475, 59279, 73227, 80835, 87175, 98175, 113169, 122045, 134725, 166425, 177837, 188615, 261525, 296395, 366135, 404175, 414953, 565845, 610225, 889185, 943075, 1244859, 1481975, 1830675, 2074765, 2829225, 4445925, 6224295, 10373825, 31121475]

約数ペア:

[(1, 31121475), (3, 10373825), (5, 6224295), (7, 4445925), (11, 2829225), (15, 2074765), (17, 1830675), (21, 1481975), (25, 1244859), (33, 943075), (35, 889185), (51, 610225), (55, 565845), (75, 414953), (77, 404175), (85, 366135), (105, 296395), (119, 261525), (165, 188615), (175, 177837), (187, 166425), (231, 134725), (255, 122045), (275, 113169), (317, 98175), (357, 87175), (385, 80835), (425, 73227), (525, 59279), (561, 55475), (595, 52305), (825, 37723), (935, 33285), (951, 32725), (1155, 26945), (1275, 24409), (1309, 23775), (1585, 19635), (1785, 17435), (1925, 16167), (2219, 14025), (2805, 11095), (2975, 10461), (3487, 8925), (3927, 7925), (4675, 6657), (4755, 6545), (5389, 5775)]