257432840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9103}}^1$

素因数の和:9222

約数の個数: 64

約数和(自身を含む): 668597760

約数和(自身を除く): 411164920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 9103, 14140, 18206, 28280, 36412, 45515, 63721, 72824, 91030, 127442, 182060, 254884, 318605, 364120, 509768, 637210, 919403, 1274420, 1838806, 2548840, 3677612, 4597015, 6435821, 7355224, 9194030, 12871642, 18388060, 25743284, 32179105, 36776120, 51486568, 64358210, 128716420, 257432840]

約数ペア:

[(1, 257432840), (2, 128716420), (4, 64358210), (5, 51486568), (7, 36776120), (8, 32179105), (10, 25743284), (14, 18388060), (20, 12871642), (28, 9194030), (35, 7355224), (40, 6435821), (56, 4597015), (70, 3677612), (101, 2548840), (140, 1838806), (202, 1274420), (280, 919403), (404, 637210), (505, 509768), (707, 364120), (808, 318605), (1010, 254884), (1414, 182060), (2020, 127442), (2828, 91030), (3535, 72824), (4040, 63721), (5656, 45515), (7070, 36412), (9103, 28280), (14140, 18206)]