251171310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{644029}}^1$

素因数の和:644052

約数の個数: 32

約数和(自身を含む): 649182240

約数和(自身を除く): 398010930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 644029, 1288058, 1932087, 3220145, 3864174, 6440290, 8372377, 9660435, 16744754, 19320870, 25117131, 41861885, 50234262, 83723770, 125585655, 251171310]

約数ペア:

[(1, 251171310), (2, 125585655), (3, 83723770), (5, 50234262), (6, 41861885), (10, 25117131), (13, 19320870), (15, 16744754), (26, 9660435), (30, 8372377), (39, 6440290), (65, 3864174), (78, 3220145), (130, 1932087), (195, 1288058), (390, 644029)]