31127080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12757}}^1$

素因数の和:12829

約数の個数: 32

約数和(自身を含む): 71189640

約数和(自身を除く): 40062560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 12757, 25514, 51028, 63785, 102056, 127570, 255140, 510280, 778177, 1556354, 3112708, 3890885, 6225416, 7781770, 15563540, 31127080]

約数ペア:

[(1, 31127080), (2, 15563540), (4, 7781770), (5, 6225416), (8, 3890885), (10, 3112708), (20, 1556354), (40, 778177), (61, 510280), (122, 255140), (244, 127570), (305, 102056), (488, 63785), (610, 51028), (1220, 25514), (2440, 12757)]