20279240

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2801}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 45896760

約数和(自身を除く): 25617520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2801, 3620, 5602, 7240, 11204, 14005, 22408, 28010, 56020, 112040, 506981, 1013962, 2027924, 2534905, 4055848, 5069810, 10139620, 20279240]

約数ペア:

[(1, 20279240), (2, 10139620), (4, 5069810), (5, 4055848), (8, 2534905), (10, 2027924), (20, 1013962), (40, 506981), (181, 112040), (362, 56020), (724, 28010), (905, 22408), (1448, 14005), (1810, 11204), (2801, 7240), (3620, 5602)]