20993820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11287}}^1$

素因数の和:11330

約数の個数: 48

約数和(自身を含む): 60684288

約数和(自身を除く): 39690468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11287, 22574, 33861, 45148, 56435, 67722, 112870, 135444, 169305, 225740, 338610, 349897, 677220, 699794, 1049691, 1399588, 1749485, 2099382, 3498970, 4198764, 5248455, 6997940, 10496910, 20993820]

約数ペア:

[(1, 20993820), (2, 10496910), (3, 6997940), (4, 5248455), (5, 4198764), (6, 3498970), (10, 2099382), (12, 1749485), (15, 1399588), (20, 1049691), (30, 699794), (31, 677220), (60, 349897), (62, 338610), (93, 225740), (124, 169305), (155, 135444), (186, 112870), (310, 67722), (372, 56435), (465, 45148), (620, 33861), (930, 22574), (1860, 11287)]