28212790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{91009}}^1$

素因数の和:91047

約数の個数: 16

約数和(自身を含む): 52421760

約数和(自身を除く): 24208970

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 91009, 182018, 455045, 910090, 2821279, 5642558, 14106395, 28212790]

約数ペア:

[(1, 28212790), (2, 14106395), (5, 5642558), (10, 2821279), (31, 910090), (62, 455045), (155, 182018), (310, 91009)]