3980020

素因数分解:

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

素因数の和:328

約数の個数: 48

約数和(自身を含む): 9273600

約数和(自身を除く): 5293580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 229, 316, 395, 458, 790, 869, 916, 1145, 1580, 1738, 2290, 2519, 3476, 4345, 4580, 5038, 8690, 10076, 12595, 17380, 18091, 25190, 36182, 50380, 72364, 90455, 180910, 199001, 361820, 398002, 796004, 995005, 1990010, 3980020]

約数ペア:

[(1, 3980020), (2, 1990010), (4, 995005), (5, 796004), (10, 398002), (11, 361820), (20, 199001), (22, 180910), (44, 90455), (55, 72364), (79, 50380), (110, 36182), (158, 25190), (220, 18091), (229, 17380), (316, 12595), (395, 10076), (458, 8690), (790, 5038), (869, 4580), (916, 4345), (1145, 3476), (1580, 2519), (1738, 2290)]