201248125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 302303232

約数和(自身を除く): 101055107

約数列:

[1, 5, 13, 17, 25, 31, 47, 65, 85, 125, 155, 221, 235, 325, 403, 425, 527, 611, 625, 775, 799, 1105, 1175, 1457, 1625, 2015, 2125, 2635, 3055, 3875, 3995, 5525, 5875, 6851, 7285, 8125, 10075, 10387, 10625, 13175, 15275, 18941, 19375, 19975, 24769, 27625, 29375, 34255, 36425, 50375, 51935, 65875, 76375, 94705, 99875, 123845, 138125, 171275, 182125, 251875, 259675, 321997, 329375, 381875, 473525, 499375, 619225, 856375, 910625, 1298375, 1609985, 2367625, 3096125, 4281875, 6491875, 8049925, 11838125, 15480625, 40249625, 201248125]

約数ペア:

[(1, 201248125), (5, 40249625), (13, 15480625), (17, 11838125), (25, 8049925), (31, 6491875), (47, 4281875), (65, 3096125), (85, 2367625), (125, 1609985), (155, 1298375), (221, 910625), (235, 856375), (325, 619225), (403, 499375), (425, 473525), (527, 381875), (611, 329375), (625, 321997), (775, 259675), (799, 251875), (1105, 182125), (1175, 171275), (1457, 138125), (1625, 123845), (2015, 99875), (2125, 94705), (2635, 76375), (3055, 65875), (3875, 51935), (3995, 50375), (5525, 36425), (5875, 34255), (6851, 29375), (7285, 27625), (8125, 24769), (10075, 19975), (10387, 19375), (10625, 18941), (13175, 15275)]