18799640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15161}}^1$

素因数の和:15203

約数の個数: 32

約数和(自身を含む): 43666560

約数和(自身を除く): 24866920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15161, 30322, 60644, 75805, 121288, 151610, 303220, 469991, 606440, 939982, 1879964, 2349955, 3759928, 4699910, 9399820, 18799640]

約数ペア:

[(1, 18799640), (2, 9399820), (4, 4699910), (5, 3759928), (8, 2349955), (10, 1879964), (20, 939982), (31, 606440), (40, 469991), (62, 303220), (124, 151610), (155, 121288), (248, 75805), (310, 60644), (620, 30322), (1240, 15161)]