80813340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 256864608

約数和(自身を除く): 176051268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 53, 60, 86, 90, 106, 129, 159, 172, 180, 197, 212, 215, 258, 265, 318, 387, 394, 430, 477, 516, 530, 591, 636, 645, 774, 788, 795, 860, 954, 985, 1060, 1182, 1290, 1548, 1590, 1773, 1908, 1935, 1970, 2279, 2364, 2385, 2580, 2955, 3180, 3546, 3870, 3940, 4558, 4770, 5910, 6837, 7092, 7740, 8471, 8865, 9116, 9540, 10441, 11395, 11820, 13674, 16942, 17730, 20511, 20882, 22790, 25413, 27348, 31323, 33884, 34185, 35460, 41022, 41764, 42355, 45580, 50826, 52205, 62646, 68370, 76239, 82044, 84710, 93969, 101652, 102555, 104410, 125292, 127065, 136740, 152478, 156615, 169420, 187938, 205110, 208820, 254130, 304956, 313230, 375876, 381195, 410220, 448963, 469845, 508260, 626460, 762390, 897926, 939690, 1346889, 1524780, 1795852, 1879380, 2244815, 2693778, 4040667, 4489630, 5387556, 6734445, 8081334, 8979260, 13468890, 16162668, 20203335, 26937780, 40406670, 80813340]

約数ペア:

[(1, 80813340), (2, 40406670), (3, 26937780), (4, 20203335), (5, 16162668), (6, 13468890), (9, 8979260), (10, 8081334), (12, 6734445), (15, 5387556), (18, 4489630), (20, 4040667), (30, 2693778), (36, 2244815), (43, 1879380), (45, 1795852), (53, 1524780), (60, 1346889), (86, 939690), (90, 897926), (106, 762390), (129, 626460), (159, 508260), (172, 469845), (180, 448963), (197, 410220), (212, 381195), (215, 375876), (258, 313230), (265, 304956), (318, 254130), (387, 208820), (394, 205110), (430, 187938), (477, 169420), (516, 156615), (530, 152478), (591, 136740), (636, 127065), (645, 125292), (774, 104410), (788, 102555), (795, 101652), (860, 93969), (954, 84710), (985, 82044), (1060, 76239), (1182, 68370), (1290, 62646), (1548, 52205), (1590, 50826), (1773, 45580), (1908, 42355), (1935, 41764), (1970, 41022), (2279, 35460), (2364, 34185), (2385, 33884), (2580, 31323), (2955, 27348), (3180, 25413), (3546, 22790), (3870, 20882), (3940, 20511), (4558, 17730), (4770, 16942), (5910, 13674), (6837, 11820), (7092, 11395), (7740, 10441), (8471, 9540), (8865, 9116)]