71830120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20177}}^1$

素因数の和:20277

約数の個数: 32

約数和(自身を含む): 163441800

約数和(自身を除く): 91611680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 20177, 40354, 80708, 100885, 161416, 201770, 403540, 807080, 1795753, 3591506, 7183012, 8978765, 14366024, 17957530, 35915060, 71830120]

約数ペア:

[(1, 71830120), (2, 35915060), (4, 17957530), (5, 14366024), (8, 8978765), (10, 7183012), (20, 3591506), (40, 1795753), (89, 807080), (178, 403540), (356, 201770), (445, 161416), (712, 100885), (890, 80708), (1780, 40354), (3560, 20177)]