20414290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{421}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 39772656

約数和(自身を除く): 19358366

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 373, 421, 746, 842, 1865, 2105, 3730, 4210, 4849, 5473, 9698, 10946, 24245, 27365, 48490, 54730, 157033, 314066, 785165, 1570330, 2041429, 4082858, 10207145, 20414290]

約数ペア:

[(1, 20414290), (2, 10207145), (5, 4082858), (10, 2041429), (13, 1570330), (26, 785165), (65, 314066), (130, 157033), (373, 54730), (421, 48490), (746, 27365), (842, 24245), (1865, 10946), (2105, 9698), (3730, 5473), (4210, 4849)]