90721480

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{31069}}^1$

素因数の和:31153

約数の個数: 32

約数和(自身を含む): 206926200

約数和(自身を除く): 116204720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 31069, 62138, 124276, 155345, 248552, 310690, 621380, 1242760, 2268037, 4536074, 9072148, 11340185, 18144296, 22680370, 45360740, 90721480]

約数ペア:

[(1, 90721480), (2, 45360740), (4, 22680370), (5, 18144296), (8, 11340185), (10, 9072148), (20, 4536074), (40, 2268037), (73, 1242760), (146, 621380), (292, 310690), (365, 248552), (584, 155345), (730, 124276), (1460, 62138), (2920, 31069)]