28290760

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5399}}^1$

素因数の和:5541

約数の個数: 32

約数和(自身を含む): 64152000

約数和(自身を除く): 35861240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5399, 10798, 21596, 26995, 43192, 53990, 107980, 215960, 707269, 1414538, 2829076, 3536345, 5658152, 7072690, 14145380, 28290760]

約数ペア:

[(1, 28290760), (2, 14145380), (4, 7072690), (5, 5658152), (8, 3536345), (10, 2829076), (20, 1414538), (40, 707269), (131, 215960), (262, 107980), (524, 53990), (655, 43192), (1048, 26995), (1310, 21596), (2620, 10798), (5240, 5399)]