18980212270

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1\times {\mathrm{887}}^1$

素因数の和:1465

約数の個数: 64

約数和(自身を含む): 35452256256

約数和(自身を除く): 16472043986

約数列:

[1, 2, 5, 10, 37, 74, 151, 185, 302, 370, 383, 755, 766, 887, 1510, 1774, 1915, 3830, 4435, 5587, 8870, 11174, 14171, 27935, 28342, 32819, 55870, 57833, 65638, 70855, 115666, 133937, 141710, 164095, 267874, 289165, 328190, 339721, 578330, 669685, 679442, 1339370, 1698605, 2139821, 3397210, 4279642, 4955669, 9911338, 10699105, 12569677, 21398210, 24778345, 25139354, 49556690, 51297871, 62848385, 102595742, 125696770, 256489355, 512978710, 1898021227, 3796042454, 9490106135, 18980212270]

約数ペア:

[(1, 18980212270), (2, 9490106135), (5, 3796042454), (10, 1898021227), (37, 512978710), (74, 256489355), (151, 125696770), (185, 102595742), (302, 62848385), (370, 51297871), (383, 49556690), (755, 25139354), (766, 24778345), (887, 21398210), (1510, 12569677), (1774, 10699105), (1915, 9911338), (3830, 4955669), (4435, 4279642), (5587, 3397210), (8870, 2139821), (11174, 1698605), (14171, 1339370), (27935, 679442), (28342, 669685), (32819, 578330), (55870, 339721), (57833, 328190), (65638, 289165), (70855, 267874), (115666, 164095), (133937, 141710)]