20426672

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 49401600

約数和(自身を除く): 28974928

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 38, 56, 58, 76, 112, 116, 133, 152, 203, 232, 266, 304, 331, 406, 464, 532, 551, 662, 812, 1064, 1102, 1324, 1624, 2128, 2204, 2317, 2648, 3248, 3857, 4408, 4634, 5296, 6289, 7714, 8816, 9268, 9599, 12578, 15428, 18536, 19198, 25156, 30856, 37072, 38396, 44023, 50312, 61712, 67193, 76792, 88046, 100624, 134386, 153584, 176092, 182381, 268772, 352184, 364762, 537544, 704368, 729524, 1075088, 1276667, 1459048, 2553334, 2918096, 5106668, 10213336, 20426672]

約数ペア:

[(1, 20426672), (2, 10213336), (4, 5106668), (7, 2918096), (8, 2553334), (14, 1459048), (16, 1276667), (19, 1075088), (28, 729524), (29, 704368), (38, 537544), (56, 364762), (58, 352184), (76, 268772), (112, 182381), (116, 176092), (133, 153584), (152, 134386), (203, 100624), (232, 88046), (266, 76792), (304, 67193), (331, 61712), (406, 50312), (464, 44023), (532, 38396), (551, 37072), (662, 30856), (812, 25156), (1064, 19198), (1102, 18536), (1324, 15428), (1624, 12578), (2128, 9599), (2204, 9268), (2317, 8816), (2648, 7714), (3248, 6289), (3857, 5296), (4408, 4634)]