90780005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 120355200

約数和(自身を除く): 29575195

約数列:

[1, 5, 19, 29, 83, 95, 145, 397, 415, 551, 1577, 1985, 2407, 2755, 7543, 7885, 11513, 12035, 32951, 37715, 45733, 57565, 164755, 218747, 228665, 626069, 955579, 1093735, 3130345, 4777895, 18156001, 90780005]

約数ペア:

[(1, 90780005), (5, 18156001), (19, 4777895), (29, 3130345), (83, 1093735), (95, 955579), (145, 626069), (397, 228665), (415, 218747), (551, 164755), (1577, 57565), (1985, 45733), (2407, 37715), (2755, 32951), (7543, 12035), (7885, 11513)]