20155604

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1123}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 40410048

約数和(自身を除く): 20254444

約数列:

[1, 2, 4, 7, 14, 28, 641, 1123, 1282, 2246, 2564, 4487, 4492, 7861, 8974, 15722, 17948, 31444, 719843, 1439686, 2879372, 5038901, 10077802, 20155604]

約数ペア:

[(1, 20155604), (2, 10077802), (4, 5038901), (7, 2879372), (14, 1439686), (28, 719843), (641, 31444), (1123, 17948), (1282, 15722), (2246, 8974), (2564, 7861), (4487, 4492)]