72188870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1319}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 140374080

約数和(自身を除く): 68185210

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 842, 1319, 2105, 2638, 4210, 5473, 6595, 10946, 13190, 17147, 27365, 34294, 54730, 85735, 171470, 555299, 1110598, 2776495, 5552990, 7218887, 14437774, 36094435, 72188870]

約数ペア:

[(1, 72188870), (2, 36094435), (5, 14437774), (10, 7218887), (13, 5552990), (26, 2776495), (65, 1110598), (130, 555299), (421, 171470), (842, 85735), (1319, 54730), (2105, 34294), (2638, 27365), (4210, 17147), (5473, 13190), (6595, 10946)]