68335280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{65707}}^1$

素因数の和:65733

約数の個数: 40

約数和(自身を含む): 171103632

約数和(自身を除く): 102768352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 65707, 131414, 262828, 328535, 525656, 657070, 854191, 1051312, 1314140, 1708382, 2628280, 3416764, 4270955, 5256560, 6833528, 8541910, 13667056, 17083820, 34167640, 68335280]

約数ペア:

[(1, 68335280), (2, 34167640), (4, 17083820), (5, 13667056), (8, 8541910), (10, 6833528), (13, 5256560), (16, 4270955), (20, 3416764), (26, 2628280), (40, 1708382), (52, 1314140), (65, 1051312), (80, 854191), (104, 657070), (130, 525656), (208, 328535), (260, 262828), (520, 131414), (1040, 65707)]