28608740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20147}}^1$

素因数の和:20227

約数の個数: 24

約数和(自身を含む): 60927552

約数和(自身を除く): 32318812

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 20147, 40294, 80588, 100735, 201470, 402940, 1430437, 2860874, 5721748, 7152185, 14304370, 28608740]

約数ペア:

[(1, 28608740), (2, 14304370), (4, 7152185), (5, 5721748), (10, 2860874), (20, 1430437), (71, 402940), (142, 201470), (284, 100735), (355, 80588), (710, 40294), (1420, 20147)]