120685780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{67801}}^1$

素因数の和:67899

約数の個数: 24

約数和(自身を含む): 256291560

約数和(自身を除く): 135605780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 67801, 135602, 271204, 339005, 678010, 1356020, 6034289, 12068578, 24137156, 30171445, 60342890, 120685780]

約数ペア:

[(1, 120685780), (2, 60342890), (4, 30171445), (5, 24137156), (10, 12068578), (20, 6034289), (89, 1356020), (178, 678010), (356, 339005), (445, 271204), (890, 135602), (1780, 67801)]