87271640

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3821}}^1$

素因数の和:4403

約数の個数: 32

約数和(自身を含む): 196756560

約数和(自身を除く): 109484920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 3821, 4568, 5710, 7642, 11420, 15284, 19105, 22840, 30568, 38210, 76420, 152840, 2181791, 4363582, 8727164, 10908955, 17454328, 21817910, 43635820, 87271640]

約数ペア:

[(1, 87271640), (2, 43635820), (4, 21817910), (5, 17454328), (8, 10908955), (10, 8727164), (20, 4363582), (40, 2181791), (571, 152840), (1142, 76420), (2284, 38210), (2855, 30568), (3821, 22840), (4568, 19105), (5710, 15284), (7642, 11420)]