64371440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1619}}^1$

素因数の和:1710

約数の個数: 80

約数和(自身を含む): 173560320

約数和(自身を除く): 109188880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1619, 1988, 2485, 2840, 3238, 3976, 4970, 5680, 6476, 7952, 8095, 9940, 11333, 12952, 16190, 19880, 22666, 25904, 32380, 39760, 45332, 56665, 64760, 90664, 113330, 114949, 129520, 181328, 226660, 229898, 453320, 459796, 574745, 804643, 906640, 919592, 1149490, 1609286, 1839184, 2298980, 3218572, 4023215, 4597960, 6437144, 8046430, 9195920, 12874288, 16092860, 32185720, 64371440]

約数ペア:

[(1, 64371440), (2, 32185720), (4, 16092860), (5, 12874288), (7, 9195920), (8, 8046430), (10, 6437144), (14, 4597960), (16, 4023215), (20, 3218572), (28, 2298980), (35, 1839184), (40, 1609286), (56, 1149490), (70, 919592), (71, 906640), (80, 804643), (112, 574745), (140, 459796), (142, 453320), (280, 229898), (284, 226660), (355, 181328), (497, 129520), (560, 114949), (568, 113330), (710, 90664), (994, 64760), (1136, 56665), (1420, 45332), (1619, 39760), (1988, 32380), (2485, 25904), (2840, 22666), (3238, 19880), (3976, 16190), (4970, 12952), (5680, 11333), (6476, 9940), (7952, 8095)]