18814520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15173}}^1$

素因数の和:15215

約数の個数: 32

約数和(自身を含む): 43701120

約数和(自身を除く): 24886600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15173, 30346, 60692, 75865, 121384, 151730, 303460, 470363, 606920, 940726, 1881452, 2351815, 3762904, 4703630, 9407260, 18814520]

約数ペア:

[(1, 18814520), (2, 9407260), (4, 4703630), (5, 3762904), (8, 2351815), (10, 1881452), (20, 940726), (31, 606920), (40, 470363), (62, 303460), (124, 151730), (155, 121384), (248, 75865), (310, 60692), (620, 30346), (1240, 15173)]