18252040

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2521}}^1$

素因数の和:2713

約数の個数: 32

約数和(自身を含む): 41310360

約数和(自身を除く): 23058320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2521, 3620, 5042, 7240, 10084, 12605, 20168, 25210, 50420, 100840, 456301, 912602, 1825204, 2281505, 3650408, 4563010, 9126020, 18252040]

約数ペア:

[(1, 18252040), (2, 9126020), (4, 4563010), (5, 3650408), (8, 2281505), (10, 1825204), (20, 912602), (40, 456301), (181, 100840), (362, 50420), (724, 25210), (905, 20168), (1448, 12605), (1810, 10084), (2521, 7240), (3620, 5042)]