37719980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21191}}^1$

素因数の和:21289

約数の個数: 24

約数和(自身を含む): 80105760

約数和(自身を除く): 42385780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 21191, 42382, 84764, 105955, 211910, 423820, 1885999, 3771998, 7543996, 9429995, 18859990, 37719980]

約数ペア:

[(1, 37719980), (2, 18859990), (4, 9429995), (5, 7543996), (10, 3771998), (20, 1885999), (89, 423820), (178, 211910), (356, 105955), (445, 84764), (890, 42382), (1780, 21191)]