205705980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2953}}^1$

素因数の和:3017

約数の個数: 120

約数和(自身を含む): 660538032

約数和(自身を除く): 454832052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 108, 129, 135, 162, 172, 180, 215, 258, 270, 324, 387, 405, 430, 516, 540, 645, 774, 810, 860, 1161, 1290, 1548, 1620, 1935, 2322, 2580, 2953, 3483, 3870, 4644, 5805, 5906, 6966, 7740, 8859, 11610, 11812, 13932, 14765, 17415, 17718, 23220, 26577, 29530, 34830, 35436, 44295, 53154, 59060, 69660, 79731, 88590, 106308, 126979, 132885, 159462, 177180, 239193, 253958, 265770, 318924, 380937, 398655, 478386, 507916, 531540, 634895, 761874, 797310, 956772, 1142811, 1195965, 1269790, 1523748, 1594620, 1904685, 2285622, 2391930, 2539580, 3428433, 3809370, 4571244, 4783860, 5714055, 6856866, 7618740, 10285299, 11428110, 13713732, 17142165, 20570598, 22856220, 34284330, 41141196, 51426495, 68568660, 102852990, 205705980]

約数ペア:

[(1, 205705980), (2, 102852990), (3, 68568660), (4, 51426495), (5, 41141196), (6, 34284330), (9, 22856220), (10, 20570598), (12, 17142165), (15, 13713732), (18, 11428110), (20, 10285299), (27, 7618740), (30, 6856866), (36, 5714055), (43, 4783860), (45, 4571244), (54, 3809370), (60, 3428433), (81, 2539580), (86, 2391930), (90, 2285622), (108, 1904685), (129, 1594620), (135, 1523748), (162, 1269790), (172, 1195965), (180, 1142811), (215, 956772), (258, 797310), (270, 761874), (324, 634895), (387, 531540), (405, 507916), (430, 478386), (516, 398655), (540, 380937), (645, 318924), (774, 265770), (810, 253958), (860, 239193), (1161, 177180), (1290, 159462), (1548, 132885), (1620, 126979), (1935, 106308), (2322, 88590), (2580, 79731), (2953, 69660), (3483, 59060), (3870, 53154), (4644, 44295), (5805, 35436), (5906, 34830), (6966, 29530), (7740, 26577), (8859, 23220), (11610, 17718), (11812, 17415), (13932, 14765)]