142581640

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{3671}}^1$

素因数の和:4653

約数の個数: 32

約数和(自身を含む): 321226560

約数和(自身を除く): 178644920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3671, 3884, 4855, 7342, 7768, 9710, 14684, 18355, 19420, 29368, 36710, 38840, 73420, 146840, 3564541, 7129082, 14258164, 17822705, 28516328, 35645410, 71290820, 142581640]

約数ペア:

[(1, 142581640), (2, 71290820), (4, 35645410), (5, 28516328), (8, 17822705), (10, 14258164), (20, 7129082), (40, 3564541), (971, 146840), (1942, 73420), (3671, 38840), (3884, 36710), (4855, 29368), (7342, 19420), (7768, 18355), (9710, 14684)]