51307640

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1321}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 115648560

約数和(自身を除く): 64340920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1321, 1942, 2642, 3884, 4855, 5284, 6605, 7768, 9710, 10568, 13210, 19420, 26420, 38840, 52840, 1282691, 2565382, 5130764, 6413455, 10261528, 12826910, 25653820, 51307640]

約数ペア:

[(1, 51307640), (2, 25653820), (4, 12826910), (5, 10261528), (8, 6413455), (10, 5130764), (20, 2565382), (40, 1282691), (971, 52840), (1321, 38840), (1942, 26420), (2642, 19420), (3884, 13210), (4855, 10568), (5284, 9710), (6605, 7768)]