20185191890

素因数分解:

$2^1\times 5^1\times {\mathrm{40289}}^1\times {\mathrm{50101}}^1$

素因数の和:90397

約数の個数: 16

約数和(自身を含む): 36334972440

約数和(自身を除く): 16149780550

約数列:

[1, 2, 5, 10, 40289, 50101, 80578, 100202, 201445, 250505, 402890, 501010, 2018519189, 4037038378, 10092595945, 20185191890]

約数ペア:

[(1, 20185191890), (2, 10092595945), (5, 4037038378), (10, 2018519189), (40289, 501010), (50101, 402890), (80578, 250505), (100202, 201445)]