20780298

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 38973942

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 29, 33, 42, 47, 58, 63, 66, 77, 87, 94, 99, 121, 126, 141, 154, 174, 198, 203, 231, 242, 261, 282, 319, 329, 363, 406, 423, 462, 517, 522, 609, 638, 658, 693, 726, 846, 847, 957, 987, 1034, 1089, 1218, 1363, 1386, 1551, 1694, 1827, 1914, 1974, 2178, 2233, 2541, 2726, 2871, 2961, 3102, 3509, 3619, 3654, 4089, 4466, 4653, 5082, 5687, 5742, 5922, 6699, 7018, 7238, 7623, 8178, 9306, 9541, 10527, 10857, 11374, 12267, 13398, 14993, 15246, 17061, 19082, 20097, 21054, 21714, 24534, 24563, 28623, 29986, 31581, 32571, 34122, 39809, 40194, 44979, 49126, 51183, 57246, 63162, 65142, 73689, 79618, 85869, 89958, 102366, 104951, 119427, 134937, 147378, 164923, 171738, 209902, 221067, 238854, 269874, 314853, 329846, 358281, 442134, 494769, 629706, 716562, 944559, 989538, 1154461, 1484307, 1889118, 2308922, 2968614, 3463383, 6926766, 10390149, 20780298]

約数ペア:

[(1, 20780298), (2, 10390149), (3, 6926766), (6, 3463383), (7, 2968614), (9, 2308922), (11, 1889118), (14, 1484307), (18, 1154461), (21, 989538), (22, 944559), (29, 716562), (33, 629706), (42, 494769), (47, 442134), (58, 358281), (63, 329846), (66, 314853), (77, 269874), (87, 238854), (94, 221067), (99, 209902), (121, 171738), (126, 164923), (141, 147378), (154, 134937), (174, 119427), (198, 104951), (203, 102366), (231, 89958), (242, 85869), (261, 79618), (282, 73689), (319, 65142), (329, 63162), (363, 57246), (406, 51183), (423, 49126), (462, 44979), (517, 40194), (522, 39809), (609, 34122), (638, 32571), (658, 31581), (693, 29986), (726, 28623), (846, 24563), (847, 24534), (957, 21714), (987, 21054), (1034, 20097), (1089, 19082), (1218, 17061), (1363, 15246), (1386, 14993), (1551, 13398), (1694, 12267), (1827, 11374), (1914, 10857), (1974, 10527), (2178, 9541), (2233, 9306), (2541, 8178), (2726, 7623), (2871, 7238), (2961, 7018), (3102, 6699), (3509, 5922), (3619, 5742), (3654, 5687), (4089, 5082), (4466, 4653)]