7977915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 15365376

約数和(自身を除く): 7387461

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 71, 99, 165, 213, 227, 355, 495, 639, 681, 781, 1065, 1135, 2043, 2343, 2497, 3195, 3405, 3905, 7029, 7491, 10215, 11715, 12485, 16117, 22473, 35145, 37455, 48351, 80585, 112365, 145053, 177287, 241755, 531861, 725265, 886435, 1595583, 2659305, 7977915]

約数ペア:

[(1, 7977915), (3, 2659305), (5, 1595583), (9, 886435), (11, 725265), (15, 531861), (33, 241755), (45, 177287), (55, 145053), (71, 112365), (99, 80585), (165, 48351), (213, 37455), (227, 35145), (355, 22473), (495, 16117), (639, 12485), (681, 11715), (781, 10215), (1065, 7491), (1135, 7029), (2043, 3905), (2343, 3405), (2497, 3195)]