156740405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{3919}}^1$

素因数の和:4364

約数の個数: 16

約数和(自身を含む): 198508800

約数和(自身を除く): 41768395

約数列:

[1, 5, 19, 95, 421, 2105, 3919, 7999, 19595, 39995, 74461, 372305, 1649899, 8249495, 31348081, 156740405]

約数ペア:

[(1, 156740405), (5, 31348081), (19, 8249495), (95, 1649899), (421, 372305), (2105, 74461), (3919, 39995), (7999, 19595)]