20742792

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 42294648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 47, 56, 71, 74, 84, 94, 111, 141, 142, 148, 168, 188, 213, 222, 259, 282, 284, 296, 329, 376, 426, 444, 497, 518, 564, 568, 658, 777, 852, 888, 987, 994, 1036, 1128, 1316, 1491, 1554, 1704, 1739, 1974, 1988, 2072, 2627, 2632, 2982, 3108, 3337, 3478, 3948, 3976, 5217, 5254, 5964, 6216, 6674, 6956, 7881, 7896, 10011, 10434, 10508, 11928, 12173, 13348, 13912, 15762, 18389, 20022, 20868, 21016, 23359, 24346, 26696, 31524, 36519, 36778, 40044, 41736, 46718, 48692, 55167, 63048, 70077, 73038, 73556, 80088, 93436, 97384, 110334, 123469, 140154, 146076, 147112, 186872, 220668, 246938, 280308, 292152, 370407, 441336, 493876, 560616, 740814, 864283, 987752, 1481628, 1728566, 2592849, 2963256, 3457132, 5185698, 6914264, 10371396, 20742792]

約数ペア:

[(1, 20742792), (2, 10371396), (3, 6914264), (4, 5185698), (6, 3457132), (7, 2963256), (8, 2592849), (12, 1728566), (14, 1481628), (21, 987752), (24, 864283), (28, 740814), (37, 560616), (42, 493876), (47, 441336), (56, 370407), (71, 292152), (74, 280308), (84, 246938), (94, 220668), (111, 186872), (141, 147112), (142, 146076), (148, 140154), (168, 123469), (188, 110334), (213, 97384), (222, 93436), (259, 80088), (282, 73556), (284, 73038), (296, 70077), (329, 63048), (376, 55167), (426, 48692), (444, 46718), (497, 41736), (518, 40044), (564, 36778), (568, 36519), (658, 31524), (777, 26696), (852, 24346), (888, 23359), (987, 21016), (994, 20868), (1036, 20022), (1128, 18389), (1316, 15762), (1491, 13912), (1554, 13348), (1704, 12173), (1739, 11928), (1974, 10508), (1988, 10434), (2072, 10011), (2627, 7896), (2632, 7881), (2982, 6956), (3108, 6674), (3337, 6216), (3478, 5964), (3948, 5254), (3976, 5217)]