201991715

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1\times {\mathrm{811}}^1$

素因数の和:1382

約数の個数: 16

約数和(自身を含む): 245451360

約数和(自身を除く): 43459645

約数列:

[1, 5, 109, 457, 545, 811, 2285, 4055, 49813, 88399, 249065, 370627, 441995, 1853135, 40398343, 201991715]

約数ペア:

[(1, 201991715), (5, 40398343), (109, 1853135), (457, 441995), (545, 370627), (811, 249065), (2285, 88399), (4055, 49813)]