20171906890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{28319}}^1$

素因数の和:28531

約数の個数: 64

約数和(自身を含む): 40128307200

約数和(自身を除く): 19956400310

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 163, 190, 230, 326, 437, 815, 874, 1630, 2185, 3097, 3749, 4370, 6194, 7498, 15485, 18745, 28319, 30970, 37490, 56638, 71231, 141595, 142462, 283190, 356155, 538061, 651337, 712310, 1076122, 1302674, 2690305, 3256685, 4615997, 5380610, 6513370, 9231994, 12375403, 23079985, 24750806, 46159970, 61877015, 87703943, 106167931, 123754030, 175407886, 212335862, 438519715, 530839655, 877039430, 1061679310, 2017190689, 4034381378, 10085953445, 20171906890]

約数ペア:

[(1, 20171906890), (2, 10085953445), (5, 4034381378), (10, 2017190689), (19, 1061679310), (23, 877039430), (38, 530839655), (46, 438519715), (95, 212335862), (115, 175407886), (163, 123754030), (190, 106167931), (230, 87703943), (326, 61877015), (437, 46159970), (815, 24750806), (874, 23079985), (1630, 12375403), (2185, 9231994), (3097, 6513370), (3749, 5380610), (4370, 4615997), (6194, 3256685), (7498, 2690305), (15485, 1302674), (18745, 1076122), (28319, 712310), (30970, 651337), (37490, 538061), (56638, 356155), (71231, 283190), (141595, 142462)]