216775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 24

約数和(自身を含む): 312480

約数和(自身を除く): 95705

約数列:

[1, 5, 13, 23, 25, 29, 65, 115, 145, 299, 325, 377, 575, 667, 725, 1495, 1885, 3335, 7475, 8671, 9425, 16675, 43355, 216775]

約数ペア:

[(1, 216775), (5, 43355), (13, 16675), (23, 9425), (25, 8671), (29, 7475), (65, 3335), (115, 1885), (145, 1495), (299, 725), (325, 667), (377, 575)]