200904490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{648079}}^1$

素因数の和:648117

約数の個数: 16

約数和(自身を含む): 373294080

約数和(自身を除く): 172389590

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 648079, 1296158, 3240395, 6480790, 20090449, 40180898, 100452245, 200904490]

約数ペア:

[(1, 200904490), (2, 100452245), (5, 40180898), (10, 20090449), (31, 6480790), (62, 3240395), (155, 1296158), (310, 648079)]