90257720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322349}}^1$

素因数の和:322367

約数の個数: 32

約数和(自身を含む): 232092000

約数和(自身を除く): 141834280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322349, 644698, 1289396, 1611745, 2256443, 2578792, 3223490, 4512886, 6446980, 9025772, 11282215, 12893960, 18051544, 22564430, 45128860, 90257720]

約数ペア:

[(1, 90257720), (2, 45128860), (4, 22564430), (5, 18051544), (7, 12893960), (8, 11282215), (10, 9025772), (14, 6446980), (20, 4512886), (28, 3223490), (35, 2578792), (40, 2256443), (56, 1611745), (70, 1289396), (140, 644698), (280, 322349)]