317492080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{128021}}^1$

素因数の和:128065

約数の個数: 40

約数和(自身を含む): 761986944

約数和(自身を除く): 444494864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 128021, 256042, 512084, 640105, 1024168, 1280210, 2048336, 2560420, 3968651, 5120840, 7937302, 10241680, 15874604, 19843255, 31749208, 39686510, 63498416, 79373020, 158746040, 317492080]

約数ペア:

[(1, 317492080), (2, 158746040), (4, 79373020), (5, 63498416), (8, 39686510), (10, 31749208), (16, 19843255), (20, 15874604), (31, 10241680), (40, 7937302), (62, 5120840), (80, 3968651), (124, 2560420), (155, 2048336), (248, 1280210), (310, 1024168), (496, 640105), (620, 512084), (1240, 256042), (2480, 128021)]