678685005

素因数分解:

$3^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{27077}}^1$

素因数の和:27645

約数の個数: 24

約数和(自身を含む): 1178542872

約数和(自身を除く): 499857867

約数列:

[1, 3, 5, 9, 15, 45, 557, 1671, 2785, 5013, 8355, 25065, 27077, 81231, 135385, 243693, 406155, 1218465, 15081889, 45245667, 75409445, 135737001, 226228335, 678685005]

約数ペア:

[(1, 678685005), (3, 226228335), (5, 135737001), (9, 75409445), (15, 45245667), (45, 15081889), (557, 1218465), (1671, 406155), (2785, 243693), (5013, 135385), (8355, 81231), (25065, 27077)]