64137915

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2064

約数の個数: 48

約数和(自身を含む): 119808000

約数和(自身を除く): 55670085

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 713, 1035, 1395, 1999, 2139, 3565, 5997, 6417, 9995, 10695, 17991, 29985, 32085, 45977, 61969, 89955, 137931, 185907, 229885, 309845, 413793, 557721, 689655, 929535, 1425287, 2068965, 2788605, 4275861, 7126435, 12827583, 21379305, 64137915]

約数ペア:

[(1, 64137915), (3, 21379305), (5, 12827583), (9, 7126435), (15, 4275861), (23, 2788605), (31, 2068965), (45, 1425287), (69, 929535), (93, 689655), (115, 557721), (155, 413793), (207, 309845), (279, 229885), (345, 185907), (465, 137931), (713, 89955), (1035, 61969), (1395, 45977), (1999, 32085), (2139, 29985), (3565, 17991), (5997, 10695), (6417, 9995)]