1640040080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{5147}}^1$

素因数の和:5736

約数の個数: 80

約数和(自身を含む): 4366327680

約数和(自身を除く): 2726287600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 569, 1138, 2276, 2845, 3983, 4552, 5147, 5690, 7966, 9104, 10294, 11380, 15932, 19915, 20588, 22760, 25735, 31864, 36029, 39830, 41176, 45520, 51470, 63728, 72058, 79660, 82352, 102940, 144116, 159320, 180145, 205880, 288232, 318640, 360290, 411760, 576464, 720580, 1441160, 2882320, 2928643, 5857286, 11714572, 14643215, 20500501, 23429144, 29286430, 41001002, 46858288, 58572860, 82002004, 102502505, 117145720, 164004008, 205005010, 234291440, 328008016, 410010020, 820020040, 1640040080]

約数ペア:

[(1, 1640040080), (2, 820020040), (4, 410010020), (5, 328008016), (7, 234291440), (8, 205005010), (10, 164004008), (14, 117145720), (16, 102502505), (20, 82002004), (28, 58572860), (35, 46858288), (40, 41001002), (56, 29286430), (70, 23429144), (80, 20500501), (112, 14643215), (140, 11714572), (280, 5857286), (560, 2928643), (569, 2882320), (1138, 1441160), (2276, 720580), (2845, 576464), (3983, 411760), (4552, 360290), (5147, 318640), (5690, 288232), (7966, 205880), (9104, 180145), (10294, 159320), (11380, 144116), (15932, 102940), (19915, 82352), (20588, 79660), (22760, 72058), (25735, 63728), (31864, 51470), (36029, 45520), (39830, 41176)]