210980360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{122663}}^1$

素因数の和:122717

約数の個数: 32

約数和(自身を含む): 485749440

約数和(自身を除く): 274769080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 122663, 245326, 490652, 613315, 981304, 1226630, 2453260, 4906520, 5274509, 10549018, 21098036, 26372545, 42196072, 52745090, 105490180, 210980360]

約数ペア:

[(1, 210980360), (2, 105490180), (4, 52745090), (5, 42196072), (8, 26372545), (10, 21098036), (20, 10549018), (40, 5274509), (43, 4906520), (86, 2453260), (172, 1226630), (215, 981304), (344, 613315), (430, 490652), (860, 245326), (1720, 122663)]