25517235

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 43776000

約数和(自身を除く): 18258765

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1999, 2553, 4255, 5997, 9995, 12765, 29985, 45977, 73963, 137931, 221889, 229885, 369815, 689655, 1109445, 1701149, 5103447, 8505745, 25517235]

約数ペア:

[(1, 25517235), (3, 8505745), (5, 5103447), (15, 1701149), (23, 1109445), (37, 689655), (69, 369815), (111, 229885), (115, 221889), (185, 137931), (345, 73963), (555, 45977), (851, 29985), (1999, 12765), (2553, 9995), (4255, 5997)]