20186558475

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^2\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 34236648000

約数和(自身を除く): 14050089525

約数列:

[1, 3, 5, 15, 25, 71, 75, 107, 213, 321, 355, 499, 535, 1065, 1497, 1605, 1775, 2495, 2675, 5041, 5325, 7485, 7597, 8025, 12475, 15123, 22791, 25205, 35429, 37425, 37985, 53393, 75615, 106287, 113955, 126025, 160179, 177145, 189925, 266965, 378075, 531435, 539387, 569775, 800895, 885725, 1334825, 1618161, 2515459, 2657175, 2696935, 3790903, 4004475, 7546377, 8090805, 11372709, 12577295, 13484675, 18954515, 37731885, 40454025, 56863545, 62886475, 94772575, 188659425, 269154113, 284317725, 807462339, 1345770565, 4037311695, 6728852825, 20186558475]

約数ペア:

[(1, 20186558475), (3, 6728852825), (5, 4037311695), (15, 1345770565), (25, 807462339), (71, 284317725), (75, 269154113), (107, 188659425), (213, 94772575), (321, 62886475), (355, 56863545), (499, 40454025), (535, 37731885), (1065, 18954515), (1497, 13484675), (1605, 12577295), (1775, 11372709), (2495, 8090805), (2675, 7546377), (5041, 4004475), (5325, 3790903), (7485, 2696935), (7597, 2657175), (8025, 2515459), (12475, 1618161), (15123, 1334825), (22791, 885725), (25205, 800895), (35429, 569775), (37425, 539387), (37985, 531435), (53393, 378075), (75615, 266965), (106287, 189925), (113955, 177145), (126025, 160179)]