778881315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{19979}}^1$

素因数の和:20123

約数の個数: 32

約数和(自身を含む): 1311966720

約数和(自身を除く): 533085405

約数列:

[1, 3, 5, 15, 23, 69, 113, 115, 339, 345, 565, 1695, 2599, 7797, 12995, 19979, 38985, 59937, 99895, 299685, 459517, 1378551, 2257627, 2297585, 6772881, 6892755, 11288135, 33864405, 51925421, 155776263, 259627105, 778881315]

約数ペア:

[(1, 778881315), (3, 259627105), (5, 155776263), (15, 51925421), (23, 33864405), (69, 11288135), (113, 6892755), (115, 6772881), (339, 2297585), (345, 2257627), (565, 1378551), (1695, 459517), (2599, 299685), (7797, 99895), (12995, 59937), (19979, 38985)]