4222180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 9596160

約数和(自身を除く): 5373980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 271, 380, 410, 542, 779, 820, 1084, 1355, 1558, 2710, 3116, 3895, 5149, 5420, 7790, 10298, 11111, 15580, 20596, 22222, 25745, 44444, 51490, 55555, 102980, 111110, 211109, 222220, 422218, 844436, 1055545, 2111090, 4222180]

約数ペア:

[(1, 4222180), (2, 2111090), (4, 1055545), (5, 844436), (10, 422218), (19, 222220), (20, 211109), (38, 111110), (41, 102980), (76, 55555), (82, 51490), (95, 44444), (164, 25745), (190, 22222), (205, 20596), (271, 15580), (380, 11111), (410, 10298), (542, 7790), (779, 5420), (820, 5149), (1084, 3895), (1355, 3116), (1558, 2710)]