28905160

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2879}}^1$

素因数の和:3141

約数の個数: 32

約数和(自身を含む): 65318400

約数和(自身を除く): 36413240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 2879, 5020, 5758, 10040, 11516, 14395, 23032, 28790, 57580, 115160, 722629, 1445258, 2890516, 3613145, 5781032, 7226290, 14452580, 28905160]

約数ペア:

[(1, 28905160), (2, 14452580), (4, 7226290), (5, 5781032), (8, 3613145), (10, 2890516), (20, 1445258), (40, 722629), (251, 115160), (502, 57580), (1004, 28790), (1255, 23032), (2008, 14395), (2510, 11516), (2879, 10040), (5020, 5758)]