690469640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2465963}}^1$

素因数の和:2465981

約数の個数: 32

約数和(自身を含む): 1775494080

約数和(自身を除く): 1085024440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2465963, 4931926, 9863852, 12329815, 17261741, 19727704, 24659630, 34523482, 49319260, 69046964, 86308705, 98638520, 138093928, 172617410, 345234820, 690469640]

約数ペア:

[(1, 690469640), (2, 345234820), (4, 172617410), (5, 138093928), (7, 98638520), (8, 86308705), (10, 69046964), (14, 49319260), (20, 34523482), (28, 24659630), (35, 19727704), (40, 17261741), (56, 12329815), (70, 9863852), (140, 4931926), (280, 2465963)]