217979880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{8609}}^1$

素因数の和:8834

約数の個数: 64

約数和(自身を含む): 657115200

約数和(自身を除く): 439135320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 844, 1055, 1266, 1688, 2110, 2532, 3165, 4220, 5064, 6330, 8440, 8609, 12660, 17218, 25320, 25827, 34436, 43045, 51654, 68872, 86090, 103308, 129135, 172180, 206616, 258270, 344360, 516540, 1033080, 1816499, 3632998, 5449497, 7265996, 9082495, 10898994, 14531992, 18164990, 21797988, 27247485, 36329980, 43595976, 54494970, 72659960, 108989940, 217979880]

約数ペア:

[(1, 217979880), (2, 108989940), (3, 72659960), (4, 54494970), (5, 43595976), (6, 36329980), (8, 27247485), (10, 21797988), (12, 18164990), (15, 14531992), (20, 10898994), (24, 9082495), (30, 7265996), (40, 5449497), (60, 3632998), (120, 1816499), (211, 1033080), (422, 516540), (633, 344360), (844, 258270), (1055, 206616), (1266, 172180), (1688, 129135), (2110, 103308), (2532, 86090), (3165, 68872), (4220, 51654), (5064, 43045), (6330, 34436), (8440, 25827), (8609, 25320), (12660, 17218)]