71401780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{45191}}^1$

素因数の和:45279

約数の個数: 24

約数和(自身を含む): 151845120

約数和(自身を除く): 80443340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 45191, 90382, 180764, 225955, 451910, 903820, 3570089, 7140178, 14280356, 17850445, 35700890, 71401780]

約数ペア:

[(1, 71401780), (2, 35700890), (4, 17850445), (5, 14280356), (10, 7140178), (20, 3570089), (79, 903820), (158, 451910), (316, 225955), (395, 180764), (790, 90382), (1580, 45191)]