80179880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1223}}^1$

素因数の和:1394

約数の個数: 64

約数和(自身を含む): 198288000

約数和(自身を除く): 118108120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 298, 440, 596, 745, 1192, 1223, 1490, 1639, 2446, 2980, 3278, 4892, 5960, 6115, 6556, 8195, 9784, 12230, 13112, 13453, 16390, 24460, 26906, 32780, 48920, 53812, 65560, 67265, 107624, 134530, 182227, 269060, 364454, 538120, 728908, 911135, 1457816, 1822270, 2004497, 3644540, 4008994, 7289080, 8017988, 10022485, 16035976, 20044970, 40089940, 80179880]

約数ペア:

[(1, 80179880), (2, 40089940), (4, 20044970), (5, 16035976), (8, 10022485), (10, 8017988), (11, 7289080), (20, 4008994), (22, 3644540), (40, 2004497), (44, 1822270), (55, 1457816), (88, 911135), (110, 728908), (149, 538120), (220, 364454), (298, 269060), (440, 182227), (596, 134530), (745, 107624), (1192, 67265), (1223, 65560), (1490, 53812), (1639, 48920), (2446, 32780), (2980, 26906), (3278, 24460), (4892, 16390), (5960, 13453), (6115, 13112), (6556, 12230), (8195, 9784)]