873980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 1859760

約数和(自身を除く): 985780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 491, 890, 982, 1780, 1964, 2455, 4910, 9820, 43699, 87398, 174796, 218495, 436990, 873980]

約数ペア:

[(1, 873980), (2, 436990), (4, 218495), (5, 174796), (10, 87398), (20, 43699), (89, 9820), (178, 4910), (356, 2455), (445, 1964), (491, 1780), (890, 982)]