20820492

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:101

約数の個数: 216

約数和(自身を含む): 70958160

約数和(自身を除く): 50137668

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 29, 33, 36, 37, 42, 44, 49, 58, 63, 66, 74, 77, 84, 87, 98, 99, 111, 116, 126, 132, 147, 148, 154, 174, 196, 198, 203, 222, 231, 252, 259, 261, 294, 308, 319, 333, 348, 396, 406, 407, 441, 444, 462, 518, 522, 539, 588, 609, 638, 666, 693, 777, 812, 814, 882, 924, 957, 1036, 1044, 1073, 1078, 1218, 1221, 1276, 1332, 1386, 1421, 1554, 1617, 1628, 1764, 1813, 1827, 1914, 2146, 2156, 2233, 2331, 2436, 2442, 2772, 2842, 2849, 2871, 3108, 3219, 3234, 3626, 3654, 3663, 3828, 4263, 4292, 4466, 4662, 4851, 4884, 5439, 5684, 5698, 5742, 6438, 6468, 6699, 7252, 7308, 7326, 7511, 8526, 8547, 8932, 9324, 9657, 9702, 10878, 11396, 11484, 11803, 12789, 12876, 13398, 14652, 15022, 15631, 16317, 17052, 17094, 19314, 19404, 19943, 20097, 21756, 22533, 23606, 25578, 25641, 26796, 30044, 31262, 32634, 34188, 35409, 38628, 39886, 40194, 45066, 46893, 47212, 51156, 51282, 52577, 59829, 62524, 65268, 67599, 70818, 79772, 80388, 82621, 90132, 93786, 102564, 105154, 106227, 119658, 135198, 140679, 141636, 157731, 165242, 179487, 187572, 210308, 212454, 239316, 247863, 270396, 281358, 315462, 330484, 358974, 424908, 473193, 495726, 562716, 578347, 630924, 717948, 743589, 946386, 991452, 1156694, 1487178, 1735041, 1892772, 2313388, 2974356, 3470082, 5205123, 6940164, 10410246, 20820492]

約数ペア:

[(1, 20820492), (2, 10410246), (3, 6940164), (4, 5205123), (6, 3470082), (7, 2974356), (9, 2313388), (11, 1892772), (12, 1735041), (14, 1487178), (18, 1156694), (21, 991452), (22, 946386), (28, 743589), (29, 717948), (33, 630924), (36, 578347), (37, 562716), (42, 495726), (44, 473193), (49, 424908), (58, 358974), (63, 330484), (66, 315462), (74, 281358), (77, 270396), (84, 247863), (87, 239316), (98, 212454), (99, 210308), (111, 187572), (116, 179487), (126, 165242), (132, 157731), (147, 141636), (148, 140679), (154, 135198), (174, 119658), (196, 106227), (198, 105154), (203, 102564), (222, 93786), (231, 90132), (252, 82621), (259, 80388), (261, 79772), (294, 70818), (308, 67599), (319, 65268), (333, 62524), (348, 59829), (396, 52577), (406, 51282), (407, 51156), (441, 47212), (444, 46893), (462, 45066), (518, 40194), (522, 39886), (539, 38628), (588, 35409), (609, 34188), (638, 32634), (666, 31262), (693, 30044), (777, 26796), (812, 25641), (814, 25578), (882, 23606), (924, 22533), (957, 21756), (1036, 20097), (1044, 19943), (1073, 19404), (1078, 19314), (1218, 17094), (1221, 17052), (1276, 16317), (1332, 15631), (1386, 15022), (1421, 14652), (1554, 13398), (1617, 12876), (1628, 12789), (1764, 11803), (1813, 11484), (1827, 11396), (1914, 10878), (2146, 9702), (2156, 9657), (2233, 9324), (2331, 8932), (2436, 8547), (2442, 8526), (2772, 7511), (2842, 7326), (2849, 7308), (2871, 7252), (3108, 6699), (3219, 6468), (3234, 6438), (3626, 5742), (3654, 5698), (3663, 5684), (3828, 5439), (4263, 4884), (4292, 4851), (4466, 4662)]