20487852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 68140800

約数和(自身を除く): 47652948

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 19, 21, 22, 28, 33, 36, 38, 42, 44, 57, 63, 66, 76, 77, 84, 99, 114, 126, 132, 133, 154, 171, 198, 209, 228, 231, 252, 266, 308, 342, 389, 396, 399, 418, 462, 532, 627, 684, 693, 778, 798, 836, 924, 1167, 1197, 1254, 1386, 1463, 1556, 1596, 1881, 2334, 2394, 2508, 2723, 2772, 2926, 3501, 3762, 4279, 4389, 4668, 4788, 5446, 5852, 7002, 7391, 7524, 8169, 8558, 8778, 10892, 12837, 13167, 14004, 14782, 16338, 17116, 17556, 22173, 24507, 25674, 26334, 29564, 29953, 32676, 38511, 44346, 49014, 51348, 51737, 52668, 59906, 66519, 77022, 81301, 88692, 89859, 98028, 103474, 119812, 133038, 154044, 155211, 162602, 179718, 206948, 243903, 266076, 269577, 310422, 325204, 359436, 465633, 487806, 539154, 569107, 620844, 731709, 931266, 975612, 1078308, 1138214, 1463418, 1707321, 1862532, 2276428, 2926836, 3414642, 5121963, 6829284, 10243926, 20487852]

約数ペア:

[(1, 20487852), (2, 10243926), (3, 6829284), (4, 5121963), (6, 3414642), (7, 2926836), (9, 2276428), (11, 1862532), (12, 1707321), (14, 1463418), (18, 1138214), (19, 1078308), (21, 975612), (22, 931266), (28, 731709), (33, 620844), (36, 569107), (38, 539154), (42, 487806), (44, 465633), (57, 359436), (63, 325204), (66, 310422), (76, 269577), (77, 266076), (84, 243903), (99, 206948), (114, 179718), (126, 162602), (132, 155211), (133, 154044), (154, 133038), (171, 119812), (198, 103474), (209, 98028), (228, 89859), (231, 88692), (252, 81301), (266, 77022), (308, 66519), (342, 59906), (389, 52668), (396, 51737), (399, 51348), (418, 49014), (462, 44346), (532, 38511), (627, 32676), (684, 29953), (693, 29564), (778, 26334), (798, 25674), (836, 24507), (924, 22173), (1167, 17556), (1197, 17116), (1254, 16338), (1386, 14782), (1463, 14004), (1556, 13167), (1596, 12837), (1881, 10892), (2334, 8778), (2394, 8558), (2508, 8169), (2723, 7524), (2772, 7391), (2926, 7002), (3501, 5852), (3762, 5446), (4279, 4788), (4389, 4668)]