20059960

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{761}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 45262800

約数和(自身を除く): 25202840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 761, 1318, 1522, 2636, 3044, 3295, 3805, 5272, 6088, 6590, 7610, 13180, 15220, 26360, 30440, 501499, 1002998, 2005996, 2507495, 4011992, 5014990, 10029980, 20059960]

約数ペア:

[(1, 20059960), (2, 10029980), (4, 5014990), (5, 4011992), (8, 2507495), (10, 2005996), (20, 1002998), (40, 501499), (659, 30440), (761, 26360), (1318, 15220), (1522, 13180), (2636, 7610), (3044, 6590), (3295, 6088), (3805, 5272)]