720697965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{2657}}^1$

素因数の和:2798

約数の個数: 48

約数和(自身を含む): 1260785088

約数和(自身を除く): 540087123

約数列:

[1, 3, 5, 13, 15, 39, 65, 107, 169, 195, 321, 507, 535, 845, 1391, 1605, 2535, 2657, 4173, 6955, 7971, 13285, 18083, 20865, 34541, 39855, 54249, 90415, 103623, 172705, 271245, 284299, 449033, 518115, 852897, 1347099, 1421495, 2245165, 3695887, 4264485, 6735495, 11087661, 18479435, 48046531, 55438305, 144139593, 240232655, 720697965]

約数ペア:

[(1, 720697965), (3, 240232655), (5, 144139593), (13, 55438305), (15, 48046531), (39, 18479435), (65, 11087661), (107, 6735495), (169, 4264485), (195, 3695887), (321, 2245165), (507, 1421495), (535, 1347099), (845, 852897), (1391, 518115), (1605, 449033), (2535, 284299), (2657, 271245), (4173, 172705), (6955, 103623), (7971, 90415), (13285, 54249), (18083, 39855), (20865, 34541)]