68636920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3319}}^1$

素因数の和:3388

約数の個数: 64

約数和(自身を含む): 172108800

約数和(自身を除く): 103471880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 3319, 4136, 5170, 6638, 10340, 13276, 16595, 20680, 26552, 33190, 36509, 66380, 73018, 132760, 146036, 155993, 182545, 292072, 311986, 365090, 623972, 730180, 779965, 1247944, 1460360, 1559930, 1715923, 3119860, 3431846, 6239720, 6863692, 8579615, 13727384, 17159230, 34318460, 68636920]

約数ペア:

[(1, 68636920), (2, 34318460), (4, 17159230), (5, 13727384), (8, 8579615), (10, 6863692), (11, 6239720), (20, 3431846), (22, 3119860), (40, 1715923), (44, 1559930), (47, 1460360), (55, 1247944), (88, 779965), (94, 730180), (110, 623972), (188, 365090), (220, 311986), (235, 292072), (376, 182545), (440, 155993), (470, 146036), (517, 132760), (940, 73018), (1034, 66380), (1880, 36509), (2068, 33190), (2585, 26552), (3319, 20680), (4136, 16595), (5170, 13276), (6638, 10340)]