18586480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21121}}^1$

素因数の和:21145

約数の個数: 40

約数和(自身を含む): 47144304

約数和(自身を除く): 28557824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21121, 42242, 84484, 105605, 168968, 211210, 232331, 337936, 422420, 464662, 844840, 929324, 1161655, 1689680, 1858648, 2323310, 3717296, 4646620, 9293240, 18586480]

約数ペア:

[(1, 18586480), (2, 9293240), (4, 4646620), (5, 3717296), (8, 2323310), (10, 1858648), (11, 1689680), (16, 1161655), (20, 929324), (22, 844840), (40, 464662), (44, 422420), (55, 337936), (80, 232331), (88, 211210), (110, 168968), (176, 105605), (220, 84484), (440, 42242), (880, 21121)]