30620440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18671}}^1$

素因数の和:18723

約数の個数: 32

約数和(自身を含む): 70580160

約数和(自身を除く): 39959720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18671, 37342, 74684, 93355, 149368, 186710, 373420, 746840, 765511, 1531022, 3062044, 3827555, 6124088, 7655110, 15310220, 30620440]

約数ペア:

[(1, 30620440), (2, 15310220), (4, 7655110), (5, 6124088), (8, 3827555), (10, 3062044), (20, 1531022), (40, 765511), (41, 746840), (82, 373420), (164, 186710), (205, 149368), (328, 93355), (410, 74684), (820, 37342), (1640, 18671)]