8430980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 18987696

約数和(自身を除く): 10556716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 181, 274, 340, 362, 548, 685, 724, 905, 1370, 1810, 2329, 2740, 3077, 3620, 4658, 6154, 9316, 11645, 12308, 15385, 23290, 24797, 30770, 46580, 49594, 61540, 99188, 123985, 247970, 421549, 495940, 843098, 1686196, 2107745, 4215490, 8430980]

約数ペア:

[(1, 8430980), (2, 4215490), (4, 2107745), (5, 1686196), (10, 843098), (17, 495940), (20, 421549), (34, 247970), (68, 123985), (85, 99188), (137, 61540), (170, 49594), (181, 46580), (274, 30770), (340, 24797), (362, 23290), (548, 15385), (685, 12308), (724, 11645), (905, 9316), (1370, 6154), (1810, 4658), (2329, 3620), (2740, 3077)]