405290090

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{70979}}^1$

素因数の和:71557

約数の個数: 16

約数和(自身を含む): 730810080

約数和(自身を除く): 325519990

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 5710, 70979, 141958, 354895, 709790, 40529009, 81058018, 202645045, 405290090]

約数ペア:

[(1, 405290090), (2, 202645045), (5, 81058018), (10, 40529009), (571, 709790), (1142, 354895), (2855, 141958), (5710, 70979)]