8518120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16381}}^1$

素因数の和:16405

約数の個数: 32

約数和(自身を含む): 20641320

約数和(自身を除く): 12123200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16381, 32762, 65524, 81905, 131048, 163810, 212953, 327620, 425906, 655240, 851812, 1064765, 1703624, 2129530, 4259060, 8518120]

約数ペア:

[(1, 8518120), (2, 4259060), (4, 2129530), (5, 1703624), (8, 1064765), (10, 851812), (13, 655240), (20, 425906), (26, 327620), (40, 212953), (52, 163810), (65, 131048), (104, 81905), (130, 65524), (260, 32762), (520, 16381)]