202100180

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1\times {\mathrm{317}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 430811136

約数和(自身を除く): 228710956

約数列:

[1, 2, 4, 5, 10, 20, 127, 251, 254, 317, 502, 508, 634, 635, 1004, 1255, 1268, 1270, 1585, 2510, 2540, 3170, 5020, 6340, 31877, 40259, 63754, 79567, 80518, 127508, 159134, 159385, 161036, 201295, 318268, 318770, 397835, 402590, 637540, 795670, 805180, 1591340, 10105009, 20210018, 40420036, 50525045, 101050090, 202100180]

約数ペア:

[(1, 202100180), (2, 101050090), (4, 50525045), (5, 40420036), (10, 20210018), (20, 10105009), (127, 1591340), (251, 805180), (254, 795670), (317, 637540), (502, 402590), (508, 397835), (634, 318770), (635, 318268), (1004, 201295), (1255, 161036), (1268, 159385), (1270, 159134), (1585, 127508), (2510, 80518), (2540, 79567), (3170, 63754), (5020, 40259), (6340, 31877)]