13689980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7691}}^1$

素因数の和:7789

約数の個数: 24

約数和(自身を含む): 29075760

約数和(自身を除く): 15385780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 7691, 15382, 30764, 38455, 76910, 153820, 684499, 1368998, 2737996, 3422495, 6844990, 13689980]

約数ペア:

[(1, 13689980), (2, 6844990), (4, 3422495), (5, 2737996), (10, 1368998), (20, 684499), (89, 153820), (178, 76910), (356, 38455), (445, 30764), (890, 15382), (1780, 7691)]