1990010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 3974400

約数和(自身を除く): 1984390

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 229, 395, 458, 790, 869, 1145, 1738, 2290, 2519, 4345, 5038, 8690, 12595, 18091, 25190, 36182, 90455, 180910, 199001, 398002, 995005, 1990010]

約数ペア:

[(1, 1990010), (2, 995005), (5, 398002), (10, 199001), (11, 180910), (22, 90455), (55, 36182), (79, 25190), (110, 18091), (158, 12595), (229, 8690), (395, 5038), (458, 4345), (790, 2519), (869, 2290), (1145, 1738)]