31319960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111857}}^1$

素因数の和:111875

約数の個数: 32

約数和(自身を含む): 80537760

約数和(自身を除く): 49217800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111857, 223714, 447428, 559285, 782999, 894856, 1118570, 1565998, 2237140, 3131996, 3914995, 4474280, 6263992, 7829990, 15659980, 31319960]

約数ペア:

[(1, 31319960), (2, 15659980), (4, 7829990), (5, 6263992), (7, 4474280), (8, 3914995), (10, 3131996), (14, 2237140), (20, 1565998), (28, 1118570), (35, 894856), (40, 782999), (56, 559285), (70, 447428), (140, 223714), (280, 111857)]