18465980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71023}}^1$

素因数の和:71045

約数の個数: 24

約数和(自身を含む): 41762112

約数和(自身を除く): 23296132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71023, 142046, 284092, 355115, 710230, 923299, 1420460, 1846598, 3693196, 4616495, 9232990, 18465980]

約数ペア:

[(1, 18465980), (2, 9232990), (4, 4616495), (5, 3693196), (10, 1846598), (13, 1420460), (20, 923299), (26, 710230), (52, 355115), (65, 284092), (130, 142046), (260, 71023)]