20908400

素因数分解:

$2^4\times 5^2\times {\mathrm{167}}^1\times {\mathrm{313}}^1$

素因数の和:498

約数の個数: 60

約数和(自身を含む): 50694672

約数和(自身を除く): 29786272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 167, 200, 313, 334, 400, 626, 668, 835, 1252, 1336, 1565, 1670, 2504, 2672, 3130, 3340, 4175, 5008, 6260, 6680, 7825, 8350, 12520, 13360, 15650, 16700, 25040, 31300, 33400, 52271, 62600, 66800, 104542, 125200, 209084, 261355, 418168, 522710, 836336, 1045420, 1306775, 2090840, 2613550, 4181680, 5227100, 10454200, 20908400]

約数ペア:

[(1, 20908400), (2, 10454200), (4, 5227100), (5, 4181680), (8, 2613550), (10, 2090840), (16, 1306775), (20, 1045420), (25, 836336), (40, 522710), (50, 418168), (80, 261355), (100, 209084), (167, 125200), (200, 104542), (313, 66800), (334, 62600), (400, 52271), (626, 33400), (668, 31300), (835, 25040), (1252, 16700), (1336, 15650), (1565, 13360), (1670, 12520), (2504, 8350), (2672, 7825), (3130, 6680), (3340, 6260), (4175, 5008)]