520180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 1128960

約数和(自身を除く): 608780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 839, 1678, 3356, 4195, 8390, 16780, 26009, 52018, 104036, 130045, 260090, 520180]

約数ペア:

[(1, 520180), (2, 260090), (4, 130045), (5, 104036), (10, 52018), (20, 26009), (31, 16780), (62, 8390), (124, 4195), (155, 3356), (310, 1678), (620, 839)]