20188980

素因数分解:

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

素因数の和:148

約数の個数: 192

約数和(自身を含む): 73920000

約数和(自身を除く): 53731020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 109, 126, 135, 140, 147, 180, 189, 196, 210, 218, 245, 252, 270, 294, 315, 327, 343, 378, 420, 436, 441, 490, 540, 545, 588, 630, 654, 686, 735, 756, 763, 882, 945, 980, 981, 1029, 1090, 1260, 1308, 1323, 1372, 1470, 1526, 1635, 1715, 1764, 1890, 1962, 2058, 2180, 2205, 2289, 2646, 2940, 2943, 3052, 3087, 3270, 3430, 3780, 3815, 3924, 4116, 4410, 4578, 4905, 5145, 5292, 5341, 5886, 6174, 6540, 6615, 6860, 6867, 7630, 8820, 9156, 9261, 9810, 10290, 10682, 11445, 11772, 12348, 13230, 13734, 14715, 15260, 15435, 16023, 18522, 19620, 20580, 20601, 21364, 22890, 26460, 26705, 27468, 29430, 30870, 32046, 34335, 37044, 37387, 41202, 45780, 46305, 48069, 53410, 58860, 61740, 64092, 68670, 74774, 80115, 82404, 92610, 96138, 103005, 106820, 112161, 137340, 144207, 149548, 160230, 185220, 186935, 192276, 206010, 224322, 240345, 288414, 320460, 336483, 373870, 412020, 448644, 480690, 560805, 576828, 672966, 721035, 747740, 961380, 1009449, 1121610, 1345932, 1442070, 1682415, 2018898, 2243220, 2884140, 3364830, 4037796, 5047245, 6729660, 10094490, 20188980]

約数ペア:

[(1, 20188980), (2, 10094490), (3, 6729660), (4, 5047245), (5, 4037796), (6, 3364830), (7, 2884140), (9, 2243220), (10, 2018898), (12, 1682415), (14, 1442070), (15, 1345932), (18, 1121610), (20, 1009449), (21, 961380), (27, 747740), (28, 721035), (30, 672966), (35, 576828), (36, 560805), (42, 480690), (45, 448644), (49, 412020), (54, 373870), (60, 336483), (63, 320460), (70, 288414), (84, 240345), (90, 224322), (98, 206010), (105, 192276), (108, 186935), (109, 185220), (126, 160230), (135, 149548), (140, 144207), (147, 137340), (180, 112161), (189, 106820), (196, 103005), (210, 96138), (218, 92610), (245, 82404), (252, 80115), (270, 74774), (294, 68670), (315, 64092), (327, 61740), (343, 58860), (378, 53410), (420, 48069), (436, 46305), (441, 45780), (490, 41202), (540, 37387), (545, 37044), (588, 34335), (630, 32046), (654, 30870), (686, 29430), (735, 27468), (756, 26705), (763, 26460), (882, 22890), (945, 21364), (980, 20601), (981, 20580), (1029, 19620), (1090, 18522), (1260, 16023), (1308, 15435), (1323, 15260), (1372, 14715), (1470, 13734), (1526, 13230), (1635, 12348), (1715, 11772), (1764, 11445), (1890, 10682), (1962, 10290), (2058, 9810), (2180, 9261), (2205, 9156), (2289, 8820), (2646, 7630), (2940, 6867), (2943, 6860), (3052, 6615), (3087, 6540), (3270, 6174), (3430, 5886), (3780, 5341), (3815, 5292), (3924, 5145), (4116, 4905), (4410, 4578)]