720840965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{6269}}^1$

素因数の和:6377

約数の個数: 32

約数和(自身を含む): 979624800

約数和(自身を除く): 258783835

約数列:

[1, 5, 13, 29, 61, 65, 145, 305, 377, 793, 1769, 1885, 3965, 6269, 8845, 22997, 31345, 81497, 114985, 181801, 382409, 407485, 909005, 1912045, 2363413, 4971317, 11089861, 11817065, 24856585, 55449305, 144168193, 720840965]

約数ペア:

[(1, 720840965), (5, 144168193), (13, 55449305), (29, 24856585), (61, 11817065), (65, 11089861), (145, 4971317), (305, 2363413), (377, 1912045), (793, 909005), (1769, 407485), (1885, 382409), (3965, 181801), (6269, 114985), (8845, 81497), (22997, 31345)]