20396770156

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1\times {\mathrm{4987}}^1$

素因数の和:5163

約数の個数: 72

約数和(自身を含む): 42301432320

約数和(自身を除く): 21904662164

約数列:

[1, 2, 4, 7, 14, 28, 43, 79, 86, 158, 172, 301, 316, 553, 602, 1106, 1204, 1849, 2212, 3397, 3698, 4987, 6794, 7396, 9974, 12943, 13588, 19948, 23779, 25886, 34909, 47558, 51772, 69818, 95116, 139636, 146071, 214441, 292142, 393973, 428882, 584284, 787946, 857764, 1022497, 1501087, 1575892, 2044994, 2757811, 3002174, 4089988, 5515622, 6004348, 9220963, 11031244, 16940839, 18441926, 33881678, 36883852, 64546741, 67763356, 118585873, 129093482, 237171746, 258186964, 474343492, 728456077, 1456912154, 2913824308, 5099192539, 10198385078, 20396770156]

約数ペア:

[(1, 20396770156), (2, 10198385078), (4, 5099192539), (7, 2913824308), (14, 1456912154), (28, 728456077), (43, 474343492), (79, 258186964), (86, 237171746), (158, 129093482), (172, 118585873), (301, 67763356), (316, 64546741), (553, 36883852), (602, 33881678), (1106, 18441926), (1204, 16940839), (1849, 11031244), (2212, 9220963), (3397, 6004348), (3698, 5515622), (4987, 4089988), (6794, 3002174), (7396, 2757811), (9974, 2044994), (12943, 1575892), (13588, 1501087), (19948, 1022497), (23779, 857764), (25886, 787946), (34909, 584284), (47558, 428882), (51772, 393973), (69818, 292142), (95116, 214441), (139636, 146071)]