71355920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20743}}^1$

素因数の和:20799

約数の個数: 40

約数和(自身を含む): 169768896

約数和(自身を除く): 98412976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20743, 41486, 82972, 103715, 165944, 207430, 331888, 414860, 829720, 891949, 1659440, 1783898, 3567796, 4459745, 7135592, 8919490, 14271184, 17838980, 35677960, 71355920]

約数ペア:

[(1, 71355920), (2, 35677960), (4, 17838980), (5, 14271184), (8, 8919490), (10, 7135592), (16, 4459745), (20, 3567796), (40, 1783898), (43, 1659440), (80, 891949), (86, 829720), (172, 414860), (215, 331888), (344, 207430), (430, 165944), (688, 103715), (860, 82972), (1720, 41486), (3440, 20743)]