31909640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113963}}^1$

素因数の和:113981

約数の個数: 32

約数和(自身を含む): 82054080

約数和(自身を除く): 50144440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 113963, 227926, 455852, 569815, 797741, 911704, 1139630, 1595482, 2279260, 3190964, 3988705, 4558520, 6381928, 7977410, 15954820, 31909640]

約数ペア:

[(1, 31909640), (2, 15954820), (4, 7977410), (5, 6381928), (7, 4558520), (8, 3988705), (10, 3190964), (14, 2279260), (20, 1595482), (28, 1139630), (35, 911704), (40, 797741), (56, 569815), (70, 455852), (140, 227926), (280, 113963)]