28288275

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^3\times {\mathrm{31}}^1$

素因数の和:113

約数の個数: 48

約数和(自身を含む): 50472960

約数和(自身を除く): 22184685

約数列:

[1, 3, 5, 15, 23, 25, 31, 69, 75, 93, 115, 155, 345, 465, 529, 575, 713, 775, 1587, 1725, 2139, 2325, 2645, 3565, 7935, 10695, 12167, 13225, 16399, 17825, 36501, 39675, 49197, 53475, 60835, 81995, 182505, 245985, 304175, 377177, 409975, 912525, 1131531, 1229925, 1885885, 5657655, 9429425, 28288275]

約数ペア:

[(1, 28288275), (3, 9429425), (5, 5657655), (15, 1885885), (23, 1229925), (25, 1131531), (31, 912525), (69, 409975), (75, 377177), (93, 304175), (115, 245985), (155, 182505), (345, 81995), (465, 60835), (529, 53475), (575, 49197), (713, 39675), (775, 36501), (1587, 17825), (1725, 16399), (2139, 13225), (2325, 12167), (2645, 10695), (3565, 7935)]