20199790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155383}}^1$

素因数の和:155403

約数の個数: 16

約数和(自身を含む): 39156768

約数和(自身を除く): 18956978

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 155383, 310766, 776915, 1553830, 2019979, 4039958, 10099895, 20199790]

約数ペア:

[(1, 20199790), (2, 10099895), (5, 4039958), (10, 2019979), (13, 1553830), (26, 776915), (65, 310766), (130, 155383)]