13321980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 47087040

約数和(自身を除く): 33765060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 109, 126, 140, 180, 194, 210, 218, 252, 291, 315, 327, 388, 420, 436, 485, 545, 582, 630, 654, 679, 763, 873, 970, 981, 1090, 1164, 1260, 1308, 1358, 1455, 1526, 1635, 1746, 1940, 1962, 2037, 2180, 2289, 2716, 2910, 3052, 3270, 3395, 3492, 3815, 3924, 4074, 4365, 4578, 4905, 5820, 6111, 6540, 6790, 6867, 7630, 8148, 8730, 9156, 9810, 10185, 10573, 11445, 12222, 13580, 13734, 15260, 17460, 19620, 20370, 21146, 22890, 24444, 27468, 30555, 31719, 34335, 40740, 42292, 45780, 52865, 61110, 63438, 68670, 74011, 95157, 105730, 122220, 126876, 137340, 148022, 158595, 190314, 211460, 222033, 296044, 317190, 370055, 380628, 444066, 475785, 634380, 666099, 740110, 888132, 951570, 1110165, 1332198, 1480220, 1903140, 2220330, 2664396, 3330495, 4440660, 6660990, 13321980]

約数ペア:

[(1, 13321980), (2, 6660990), (3, 4440660), (4, 3330495), (5, 2664396), (6, 2220330), (7, 1903140), (9, 1480220), (10, 1332198), (12, 1110165), (14, 951570), (15, 888132), (18, 740110), (20, 666099), (21, 634380), (28, 475785), (30, 444066), (35, 380628), (36, 370055), (42, 317190), (45, 296044), (60, 222033), (63, 211460), (70, 190314), (84, 158595), (90, 148022), (97, 137340), (105, 126876), (109, 122220), (126, 105730), (140, 95157), (180, 74011), (194, 68670), (210, 63438), (218, 61110), (252, 52865), (291, 45780), (315, 42292), (327, 40740), (388, 34335), (420, 31719), (436, 30555), (485, 27468), (545, 24444), (582, 22890), (630, 21146), (654, 20370), (679, 19620), (763, 17460), (873, 15260), (970, 13734), (981, 13580), (1090, 12222), (1164, 11445), (1260, 10573), (1308, 10185), (1358, 9810), (1455, 9156), (1526, 8730), (1635, 8148), (1746, 7630), (1940, 6867), (1962, 6790), (2037, 6540), (2180, 6111), (2289, 5820), (2716, 4905), (2910, 4578), (3052, 4365), (3270, 4074), (3395, 3924), (3492, 3815)]