209761740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:760

約数の個数: 144

約数和(自身を含む): 667963296

約数和(自身を除く): 458201556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 43, 45, 60, 82, 86, 90, 123, 129, 164, 172, 180, 205, 215, 246, 258, 369, 387, 410, 430, 492, 516, 615, 645, 661, 738, 774, 820, 860, 1230, 1290, 1322, 1476, 1548, 1763, 1845, 1935, 1983, 2460, 2580, 2644, 3305, 3526, 3690, 3870, 3966, 5289, 5949, 6610, 7052, 7380, 7740, 7932, 8815, 9915, 10578, 11898, 13220, 15867, 17630, 19830, 21156, 23796, 26445, 27101, 28423, 29745, 31734, 35260, 39660, 52890, 54202, 56846, 59490, 63468, 79335, 81303, 85269, 105780, 108404, 113692, 118980, 135505, 142115, 158670, 162606, 170538, 243909, 255807, 271010, 284230, 317340, 325212, 341076, 406515, 426345, 487818, 511614, 542020, 568460, 813030, 852690, 975636, 1023228, 1165343, 1219545, 1279035, 1626060, 1705380, 2330686, 2439090, 2558070, 3496029, 4661372, 4878180, 5116140, 5826715, 6992058, 10488087, 11653430, 13984116, 17480145, 20976174, 23306860, 34960290, 41952348, 52440435, 69920580, 104880870, 209761740]

約数ペア:

[(1, 209761740), (2, 104880870), (3, 69920580), (4, 52440435), (5, 41952348), (6, 34960290), (9, 23306860), (10, 20976174), (12, 17480145), (15, 13984116), (18, 11653430), (20, 10488087), (30, 6992058), (36, 5826715), (41, 5116140), (43, 4878180), (45, 4661372), (60, 3496029), (82, 2558070), (86, 2439090), (90, 2330686), (123, 1705380), (129, 1626060), (164, 1279035), (172, 1219545), (180, 1165343), (205, 1023228), (215, 975636), (246, 852690), (258, 813030), (369, 568460), (387, 542020), (410, 511614), (430, 487818), (492, 426345), (516, 406515), (615, 341076), (645, 325212), (661, 317340), (738, 284230), (774, 271010), (820, 255807), (860, 243909), (1230, 170538), (1290, 162606), (1322, 158670), (1476, 142115), (1548, 135505), (1763, 118980), (1845, 113692), (1935, 108404), (1983, 105780), (2460, 85269), (2580, 81303), (2644, 79335), (3305, 63468), (3526, 59490), (3690, 56846), (3870, 54202), (3966, 52890), (5289, 39660), (5949, 35260), (6610, 31734), (7052, 29745), (7380, 28423), (7740, 27101), (7932, 26445), (8815, 23796), (9915, 21156), (10578, 19830), (11898, 17630), (13220, 15867)]