28215420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1117}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 79261728

約数和(自身を除く): 51046308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 421, 842, 1117, 1263, 1684, 2105, 2234, 2526, 3351, 4210, 4468, 5052, 5585, 6315, 6702, 8420, 11170, 12630, 13404, 16755, 22340, 25260, 33510, 67020, 470257, 940514, 1410771, 1881028, 2351285, 2821542, 4702570, 5643084, 7053855, 9405140, 14107710, 28215420]

約数ペア:

[(1, 28215420), (2, 14107710), (3, 9405140), (4, 7053855), (5, 5643084), (6, 4702570), (10, 2821542), (12, 2351285), (15, 1881028), (20, 1410771), (30, 940514), (60, 470257), (421, 67020), (842, 33510), (1117, 25260), (1263, 22340), (1684, 16755), (2105, 13404), (2234, 12630), (2526, 11170), (3351, 8420), (4210, 6702), (4468, 6315), (5052, 5585)]