15921940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19417}}^1$

素因数の和:19467

約数の個数: 24

約数和(自身を含む): 34253352

約数和(自身を除く): 18331412

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19417, 38834, 77668, 97085, 194170, 388340, 796097, 1592194, 3184388, 3980485, 7960970, 15921940]

約数ペア:

[(1, 15921940), (2, 7960970), (4, 3980485), (5, 3184388), (10, 1592194), (20, 796097), (41, 388340), (82, 194170), (164, 97085), (205, 77668), (410, 38834), (820, 19417)]