28315310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 53071200

約数和(自身を除く): 24755890

約数列:

[1, 2, 5, 10, 29, 58, 145, 251, 290, 389, 502, 778, 1255, 1945, 2510, 3890, 7279, 11281, 14558, 22562, 36395, 56405, 72790, 97639, 112810, 195278, 488195, 976390, 2831531, 5663062, 14157655, 28315310]

約数ペア:

[(1, 28315310), (2, 14157655), (5, 5663062), (10, 2831531), (29, 976390), (58, 488195), (145, 195278), (251, 112810), (290, 97639), (389, 72790), (502, 56405), (778, 36395), (1255, 22562), (1945, 14558), (2510, 11281), (3890, 7279)]