19444490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{401}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 37887696

約数和(自身を除く): 18443206

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 373, 401, 746, 802, 1865, 2005, 3730, 4010, 4849, 5213, 9698, 10426, 24245, 26065, 48490, 52130, 149573, 299146, 747865, 1495730, 1944449, 3888898, 9722245, 19444490]

約数ペア:

[(1, 19444490), (2, 9722245), (5, 3888898), (10, 1944449), (13, 1495730), (26, 747865), (65, 299146), (130, 149573), (373, 52130), (401, 48490), (746, 26065), (802, 24245), (1865, 10426), (2005, 9698), (3730, 5213), (4010, 4849)]