718120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1381}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 1741320

約数和(自身を除く): 1023200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1381, 2762, 5524, 6905, 11048, 13810, 17953, 27620, 35906, 55240, 71812, 89765, 143624, 179530, 359060, 718120]

約数ペア:

[(1, 718120), (2, 359060), (4, 179530), (5, 143624), (8, 89765), (10, 71812), (13, 55240), (20, 35906), (26, 27620), (40, 17953), (52, 13810), (65, 11048), (104, 6905), (130, 5524), (260, 2762), (520, 1381)]