40481740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155699}}^1$

素因数の和:155721

約数の個数: 24

約数和(自身を含む): 91551600

約数和(自身を除く): 51069860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 155699, 311398, 622796, 778495, 1556990, 2024087, 3113980, 4048174, 8096348, 10120435, 20240870, 40481740]

約数ペア:

[(1, 40481740), (2, 20240870), (4, 10120435), (5, 8096348), (10, 4048174), (13, 3113980), (20, 2024087), (26, 1556990), (52, 778495), (65, 622796), (130, 311398), (260, 155699)]