20189701870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155305399}}^1$

素因数の和:155305419

約数の個数: 16

約数和(自身を含む): 39136960800

約数和(自身を除く): 18947258930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 155305399, 310610798, 776526995, 1553053990, 2018970187, 4037940374, 10094850935, 20189701870]

約数ペア:

[(1, 20189701870), (2, 10094850935), (5, 4037940374), (10, 2018970187), (13, 1553053990), (26, 776526995), (65, 310610798), (130, 155305399)]