158746040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{128021}}^1$

素因数の和:128063

約数の個数: 32

約数和(自身を含む): 368703360

約数和(自身を除く): 209957320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 128021, 256042, 512084, 640105, 1024168, 1280210, 2560420, 3968651, 5120840, 7937302, 15874604, 19843255, 31749208, 39686510, 79373020, 158746040]

約数ペア:

[(1, 158746040), (2, 79373020), (4, 39686510), (5, 31749208), (8, 19843255), (10, 15874604), (20, 7937302), (31, 5120840), (40, 3968651), (62, 2560420), (124, 1280210), (155, 1024168), (248, 640105), (310, 512084), (620, 256042), (1240, 128021)]