18190640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17491}}^1$

素因数の和:17517

約数の個数: 40

約数和(自身を含む): 45549168

約数和(自身を除く): 27358528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17491, 34982, 69964, 87455, 139928, 174910, 227383, 279856, 349820, 454766, 699640, 909532, 1136915, 1399280, 1819064, 2273830, 3638128, 4547660, 9095320, 18190640]

約数ペア:

[(1, 18190640), (2, 9095320), (4, 4547660), (5, 3638128), (8, 2273830), (10, 1819064), (13, 1399280), (16, 1136915), (20, 909532), (26, 699640), (40, 454766), (52, 349820), (65, 279856), (80, 227383), (104, 174910), (130, 139928), (208, 87455), (260, 69964), (520, 34982), (1040, 17491)]