56943980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31991}}^1$

素因数の和:32089

約数の個数: 24

約数和(自身を含む): 120929760

約数和(自身を除く): 63985780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 31991, 63982, 127964, 159955, 319910, 639820, 2847199, 5694398, 11388796, 14235995, 28471990, 56943980]

約数ペア:

[(1, 56943980), (2, 28471990), (4, 14235995), (5, 11388796), (10, 5694398), (20, 2847199), (89, 639820), (178, 319910), (356, 159955), (445, 127964), (890, 63982), (1780, 31991)]