71823760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20879}}^1$

素因数の和:20935

約数の個数: 40

約数和(自身を含む): 170881920

約数和(自身を除く): 99058160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20879, 41758, 83516, 104395, 167032, 208790, 334064, 417580, 835160, 897797, 1670320, 1795594, 3591188, 4488985, 7182376, 8977970, 14364752, 17955940, 35911880, 71823760]

約数ペア:

[(1, 71823760), (2, 35911880), (4, 17955940), (5, 14364752), (8, 8977970), (10, 7182376), (16, 4488985), (20, 3591188), (40, 1795594), (43, 1670320), (80, 897797), (86, 835160), (172, 417580), (215, 334064), (344, 208790), (430, 167032), (688, 104395), (860, 83516), (1720, 41758), (3440, 20879)]