65716940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{41593}}^1$

素因数の和:41681

約数の個数: 24

約数和(自身を含む): 139755840

約数和(自身を除く): 74038900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 41593, 83186, 166372, 207965, 415930, 831860, 3285847, 6571694, 13143388, 16429235, 32858470, 65716940]

約数ペア:

[(1, 65716940), (2, 32858470), (4, 16429235), (5, 13143388), (10, 6571694), (20, 3285847), (79, 831860), (158, 415930), (316, 207965), (395, 166372), (790, 83186), (1580, 41593)]