20128227904

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{13003}}^1$

素因数の和:13120

約数の個数: 84

約数和(自身を含む): 42787269264

約数和(自身を除く): 22659041360

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 67, 76, 134, 152, 268, 304, 361, 536, 608, 722, 1072, 1216, 1273, 1444, 2144, 2546, 2888, 4288, 5092, 5776, 10184, 11552, 13003, 20368, 23104, 24187, 26006, 40736, 48374, 52012, 81472, 96748, 104024, 193496, 208048, 247057, 386992, 416096, 494114, 773984, 832192, 871201, 988228, 1547968, 1742402, 1976456, 3484804, 3952912, 4694083, 6969608, 7905824, 9388166, 13939216, 15811648, 16552819, 18776332, 27878432, 33105638, 37552664, 55756864, 66211276, 75105328, 132422552, 150210656, 264845104, 300421312, 314503561, 529690208, 629007122, 1059380416, 1258014244, 2516028488, 5032056976, 10064113952, 20128227904]

約数ペア:

[(1, 20128227904), (2, 10064113952), (4, 5032056976), (8, 2516028488), (16, 1258014244), (19, 1059380416), (32, 629007122), (38, 529690208), (64, 314503561), (67, 300421312), (76, 264845104), (134, 150210656), (152, 132422552), (268, 75105328), (304, 66211276), (361, 55756864), (536, 37552664), (608, 33105638), (722, 27878432), (1072, 18776332), (1216, 16552819), (1273, 15811648), (1444, 13939216), (2144, 9388166), (2546, 7905824), (2888, 6969608), (4288, 4694083), (5092, 3952912), (5776, 3484804), (10184, 1976456), (11552, 1742402), (13003, 1547968), (20368, 988228), (23104, 871201), (24187, 832192), (26006, 773984), (40736, 494114), (48374, 416096), (52012, 386992), (81472, 247057), (96748, 208048), (104024, 193496)]