20123887938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1\times {\mathrm{2969}}^1$

素因数の和:3872

約数の個数: 128

約数和(自身を含む): 53210234880

約数和(自身を除く): 33086346942

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 863, 1122, 1309, 1726, 2589, 2618, 2969, 3927, 5178, 5938, 6041, 7854, 8907, 9493, 12082, 14671, 17814, 18123, 18986, 20783, 28479, 29342, 32659, 36246, 41566, 44013, 50473, 56958, 62349, 65318, 66451, 88026, 97977, 100946, 102697, 124698, 132902, 151419, 161381, 195954, 199353, 205394, 228613, 302838, 308091, 322762, 353311, 398706, 457226, 484143, 555203, 616182, 685839, 706622, 968286, 1059933, 1110406, 1129667, 1371678, 1665609, 2119866, 2259334, 2562247, 3331218, 3389001, 3886421, 5124494, 6778002, 7686741, 7772842, 11659263, 15373482, 17935729, 23318526, 28184717, 35871458, 43558199, 53807187, 56369434, 84554151, 87116398, 107614374, 130674597, 169108302, 197293019, 261349194, 304907393, 394586038, 479140189, 591879057, 609814786, 914722179, 958280378, 1183758114, 1437420567, 1829444358, 2874841134, 3353981323, 6707962646, 10061943969, 20123887938]

約数ペア:

[(1, 20123887938), (2, 10061943969), (3, 6707962646), (6, 3353981323), (7, 2874841134), (11, 1829444358), (14, 1437420567), (17, 1183758114), (21, 958280378), (22, 914722179), (33, 609814786), (34, 591879057), (42, 479140189), (51, 394586038), (66, 304907393), (77, 261349194), (102, 197293019), (119, 169108302), (154, 130674597), (187, 107614374), (231, 87116398), (238, 84554151), (357, 56369434), (374, 53807187), (462, 43558199), (561, 35871458), (714, 28184717), (863, 23318526), (1122, 17935729), (1309, 15373482), (1726, 11659263), (2589, 7772842), (2618, 7686741), (2969, 6778002), (3927, 5124494), (5178, 3886421), (5938, 3389001), (6041, 3331218), (7854, 2562247), (8907, 2259334), (9493, 2119866), (12082, 1665609), (14671, 1371678), (17814, 1129667), (18123, 1110406), (18986, 1059933), (20783, 968286), (28479, 706622), (29342, 685839), (32659, 616182), (36246, 555203), (41566, 484143), (44013, 457226), (50473, 398706), (56958, 353311), (62349, 322762), (65318, 308091), (66451, 302838), (88026, 228613), (97977, 205394), (100946, 199353), (102697, 195954), (124698, 161381), (132902, 151419)]