20120801740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77387699}}^1$

素因数の和:77387721

約数の個数: 24

約数和(自身を含む): 45503967600

約数和(自身を除く): 25383165860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77387699, 154775398, 309550796, 386938495, 773876990, 1006040087, 1547753980, 2012080174, 4024160348, 5030200435, 10060400870, 20120801740]

約数ペア:

[(1, 20120801740), (2, 10060400870), (4, 5030200435), (5, 4024160348), (10, 2012080174), (13, 1547753980), (20, 1006040087), (26, 773876990), (52, 386938495), (65, 309550796), (130, 154775398), (260, 77387699)]