7890640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1927

約数の個数: 40

約数和(自身を含む): 18701928

約数和(自身を除く): 10811288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 1861, 2120, 3722, 4240, 7444, 9305, 14888, 18610, 29776, 37220, 74440, 98633, 148880, 197266, 394532, 493165, 789064, 986330, 1578128, 1972660, 3945320, 7890640]

約数ペア:

[(1, 7890640), (2, 3945320), (4, 1972660), (5, 1578128), (8, 986330), (10, 789064), (16, 493165), (20, 394532), (40, 197266), (53, 148880), (80, 98633), (106, 74440), (212, 37220), (265, 29776), (424, 18610), (530, 14888), (848, 9305), (1060, 7444), (1861, 4240), (2120, 3722)]