71404940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1051}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 155527680

約数和(自身を除く): 84122740

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1051, 1580, 2102, 3397, 4204, 5255, 6794, 10510, 13588, 16985, 21020, 33970, 45193, 67940, 83029, 90386, 166058, 180772, 225965, 332116, 415145, 451930, 830290, 903860, 1660580, 3570247, 7140494, 14280988, 17851235, 35702470, 71404940]

約数ペア:

[(1, 71404940), (2, 35702470), (4, 17851235), (5, 14280988), (10, 7140494), (20, 3570247), (43, 1660580), (79, 903860), (86, 830290), (158, 451930), (172, 415145), (215, 332116), (316, 225965), (395, 180772), (430, 166058), (790, 90386), (860, 83029), (1051, 67940), (1580, 45193), (2102, 33970), (3397, 21020), (4204, 16985), (5255, 13588), (6794, 10510)]