212765895

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{8581}}^1$

素因数の和:8640

約数の個数: 48

約数和(自身を含む): 401637600

約数和(自身を除く): 188871705

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 855, 1305, 1653, 2755, 4959, 8265, 8581, 24795, 25743, 42905, 77229, 128715, 163039, 248849, 386145, 489117, 746547, 815195, 1244245, 1467351, 2239641, 2445585, 3732735, 4728131, 7336755, 11198205, 14184393, 23640655, 42553179, 70921965, 212765895]

約数ペア:

[(1, 212765895), (3, 70921965), (5, 42553179), (9, 23640655), (15, 14184393), (19, 11198205), (29, 7336755), (45, 4728131), (57, 3732735), (87, 2445585), (95, 2239641), (145, 1467351), (171, 1244245), (261, 815195), (285, 746547), (435, 489117), (551, 386145), (855, 248849), (1305, 163039), (1653, 128715), (2755, 77229), (4959, 42905), (8265, 25743), (8581, 24795)]