28656700

素因数分解:

$2^2\times 5^2\times {\mathrm{509}}^1\times {\mathrm{563}}^1$

素因数の和:1086

約数の個数: 36

約数和(自身を含む): 62417880

約数和(自身を除く): 33761180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 509, 563, 1018, 1126, 2036, 2252, 2545, 2815, 5090, 5630, 10180, 11260, 12725, 14075, 25450, 28150, 50900, 56300, 286567, 573134, 1146268, 1432835, 2865670, 5731340, 7164175, 14328350, 28656700]

約数ペア:

[(1, 28656700), (2, 14328350), (4, 7164175), (5, 5731340), (10, 2865670), (20, 1432835), (25, 1146268), (50, 573134), (100, 286567), (509, 56300), (563, 50900), (1018, 28150), (1126, 25450), (2036, 14075), (2252, 12725), (2545, 11260), (2815, 10180), (5090, 5630)]