647569340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{33073}}^1$

素因数の和:33182

約数の個数: 48

約数和(自身を含む): 1500236640

約数和(自身を除く): 852667300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 33073, 66146, 132292, 165365, 330730, 363803, 661460, 727606, 1455212, 1819015, 2943497, 3638030, 5886994, 7276060, 11773988, 14717485, 29434970, 32378467, 58869940, 64756934, 129513868, 161892335, 323784670, 647569340]

約数ペア:

[(1, 647569340), (2, 323784670), (4, 161892335), (5, 129513868), (10, 64756934), (11, 58869940), (20, 32378467), (22, 29434970), (44, 14717485), (55, 11773988), (89, 7276060), (110, 5886994), (178, 3638030), (220, 2943497), (356, 1819015), (445, 1455212), (890, 727606), (979, 661460), (1780, 363803), (1958, 330730), (3916, 165365), (4895, 132292), (9790, 66146), (19580, 33073)]