19627640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2711}}^1$

素因数の和:2903

約数の個数: 32

約数和(自身を含む): 44422560

約数和(自身を除く): 24794920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2711, 3620, 5422, 7240, 10844, 13555, 21688, 27110, 54220, 108440, 490691, 981382, 1962764, 2453455, 3925528, 4906910, 9813820, 19627640]

約数ペア:

[(1, 19627640), (2, 9813820), (4, 4906910), (5, 3925528), (8, 2453455), (10, 1962764), (20, 981382), (40, 490691), (181, 108440), (362, 54220), (724, 27110), (905, 21688), (1448, 13555), (1810, 10844), (2711, 7240), (3620, 5422)]