12823120

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1801}}^1$

素因数の和:1903

約数の個数: 40

約数和(自身を含む): 30165480

約数和(自身を除く): 17342360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 1801, 3560, 3602, 7120, 7204, 9005, 14408, 18010, 28816, 36020, 72040, 144080, 160289, 320578, 641156, 801445, 1282312, 1602890, 2564624, 3205780, 6411560, 12823120]

約数ペア:

[(1, 12823120), (2, 6411560), (4, 3205780), (5, 2564624), (8, 1602890), (10, 1282312), (16, 801445), (20, 641156), (40, 320578), (80, 160289), (89, 144080), (178, 72040), (356, 36020), (445, 28816), (712, 18010), (890, 14408), (1424, 9005), (1780, 7204), (1801, 7120), (3560, 3602)]