2009798890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{7079}}^1$

素因数の和:7215

約数の個数: 64

約数和(自身を含む): 4129056000

約数和(自身を除く): 2119257110

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 89, 110, 145, 178, 290, 319, 445, 638, 890, 979, 1595, 1958, 2581, 3190, 4895, 5162, 7079, 9790, 12905, 14158, 25810, 28391, 35395, 56782, 70790, 77869, 141955, 155738, 205291, 283910, 389345, 410582, 630031, 778690, 1026455, 1260062, 2052910, 2258201, 3150155, 4516402, 6300310, 6930341, 11291005, 13860682, 18270899, 22582010, 34651705, 36541798, 69303410, 91354495, 182708990, 200979889, 401959778, 1004899445, 2009798890]

約数ペア:

[(1, 2009798890), (2, 1004899445), (5, 401959778), (10, 200979889), (11, 182708990), (22, 91354495), (29, 69303410), (55, 36541798), (58, 34651705), (89, 22582010), (110, 18270899), (145, 13860682), (178, 11291005), (290, 6930341), (319, 6300310), (445, 4516402), (638, 3150155), (890, 2258201), (979, 2052910), (1595, 1260062), (1958, 1026455), (2581, 778690), (3190, 630031), (4895, 410582), (5162, 389345), (7079, 283910), (9790, 205291), (12905, 155738), (14158, 141955), (25810, 77869), (28391, 70790), (35395, 56782)]