320319675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2741

約数の個数: 72

約数和(自身を含む): 633167808

約数和(自身を除く): 312848133

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 195, 205, 225, 325, 369, 533, 585, 615, 975, 1025, 1599, 1845, 2665, 2671, 2925, 3075, 4797, 7995, 8013, 9225, 13325, 13355, 23985, 24039, 34723, 39975, 40065, 66775, 104169, 109511, 119925, 120195, 173615, 200325, 312507, 328533, 520845, 547555, 600975, 868075, 985599, 1423643, 1562535, 1642665, 2604225, 2737775, 4270929, 4927995, 7118215, 7812675, 8213325, 12812787, 21354645, 24639975, 35591075, 64063935, 106773225, 320319675]

約数ペア:

[(1, 320319675), (3, 106773225), (5, 64063935), (9, 35591075), (13, 24639975), (15, 21354645), (25, 12812787), (39, 8213325), (41, 7812675), (45, 7118215), (65, 4927995), (75, 4270929), (117, 2737775), (123, 2604225), (195, 1642665), (205, 1562535), (225, 1423643), (325, 985599), (369, 868075), (533, 600975), (585, 547555), (615, 520845), (975, 328533), (1025, 312507), (1599, 200325), (1845, 173615), (2665, 120195), (2671, 119925), (2925, 109511), (3075, 104169), (4797, 66775), (7995, 40065), (8013, 39975), (9225, 34723), (13325, 24039), (13355, 23985)]