81354915

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{5333}}^1$

素因数の和:5460

約数の個数: 32

約数和(自身を含む): 145938240

約数和(自身を除く): 64583325

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 135, 339, 565, 1017, 1695, 3051, 5085, 5333, 15255, 15999, 26665, 47997, 79995, 143991, 239985, 602629, 719955, 1807887, 3013145, 5423661, 9039435, 16270983, 27118305, 81354915]

約数ペア:

[(1, 81354915), (3, 27118305), (5, 16270983), (9, 9039435), (15, 5423661), (27, 3013145), (45, 1807887), (113, 719955), (135, 602629), (339, 239985), (565, 143991), (1017, 79995), (1695, 47997), (3051, 26665), (5085, 15999), (5333, 15255)]