81373175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 114388512

約数和(自身を除く): 33015337

約数列:

[1, 5, 13, 25, 37, 65, 67, 101, 185, 325, 335, 481, 505, 871, 925, 1313, 1675, 2405, 2479, 2525, 3737, 4355, 6565, 6767, 12025, 12395, 18685, 21775, 32227, 32825, 33835, 48581, 61975, 87971, 93425, 161135, 169175, 242905, 250379, 439855, 805675, 1214525, 1251895, 2199275, 3254927, 6259475, 16274635, 81373175]

約数ペア:

[(1, 81373175), (5, 16274635), (13, 6259475), (25, 3254927), (37, 2199275), (65, 1251895), (67, 1214525), (101, 805675), (185, 439855), (325, 250379), (335, 242905), (481, 169175), (505, 161135), (871, 93425), (925, 87971), (1313, 61975), (1675, 48581), (2405, 33835), (2479, 32825), (2525, 32227), (3737, 21775), (4355, 18685), (6565, 12395), (6767, 12025)]