28653780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{997}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 80478720

約数和(自身を除く): 51824940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 479, 958, 997, 1437, 1916, 1994, 2395, 2874, 2991, 3988, 4790, 4985, 5748, 5982, 7185, 9580, 9970, 11964, 14370, 14955, 19940, 28740, 29910, 59820, 477563, 955126, 1432689, 1910252, 2387815, 2865378, 4775630, 5730756, 7163445, 9551260, 14326890, 28653780]

約数ペア:

[(1, 28653780), (2, 14326890), (3, 9551260), (4, 7163445), (5, 5730756), (6, 4775630), (10, 2865378), (12, 2387815), (15, 1910252), (20, 1432689), (30, 955126), (60, 477563), (479, 59820), (958, 29910), (997, 28740), (1437, 19940), (1916, 14955), (1994, 14370), (2395, 11964), (2874, 9970), (2991, 9580), (3988, 7185), (4790, 5982), (4985, 5748)]