71815455

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 130178880

約数和(自身を除く): 58363425

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 113, 145, 261, 339, 435, 487, 565, 1017, 1305, 1461, 1695, 2435, 3277, 4383, 5085, 7305, 9831, 14123, 16385, 21915, 29493, 42369, 49155, 55031, 70615, 127107, 147465, 165093, 211845, 275155, 495279, 635535, 825465, 1595899, 2476395, 4787697, 7979495, 14363091, 23938485, 71815455]

約数ペア:

[(1, 71815455), (3, 23938485), (5, 14363091), (9, 7979495), (15, 4787697), (29, 2476395), (45, 1595899), (87, 825465), (113, 635535), (145, 495279), (261, 275155), (339, 211845), (435, 165093), (487, 147465), (565, 127107), (1017, 70615), (1305, 55031), (1461, 49155), (1695, 42369), (2435, 29493), (3277, 21915), (4383, 16385), (5085, 14123), (7305, 9831)]