161520235

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{4157}}^1$

素因数の和:4590

約数の個数: 16

約数和(自身を含む): 204573600

約数和(自身を除く): 43053365

約数列:

[1, 5, 19, 95, 409, 2045, 4157, 7771, 20785, 38855, 78983, 394915, 1700213, 8501065, 32304047, 161520235]

約数ペア:

[(1, 161520235), (5, 32304047), (19, 8501065), (95, 1700213), (409, 394915), (2045, 78983), (4157, 38855), (7771, 20785)]