18244180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 41348160

約数和(自身を除く): 23103980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1171, 1558, 2342, 3116, 3895, 4684, 5855, 7790, 11710, 15580, 22249, 23420, 44498, 48011, 88996, 96022, 111245, 192044, 222490, 240055, 444980, 480110, 912209, 960220, 1824418, 3648836, 4561045, 9122090, 18244180]

約数ペア:

[(1, 18244180), (2, 9122090), (4, 4561045), (5, 3648836), (10, 1824418), (19, 960220), (20, 912209), (38, 480110), (41, 444980), (76, 240055), (82, 222490), (95, 192044), (164, 111245), (190, 96022), (205, 88996), (380, 48011), (410, 44498), (779, 23420), (820, 22249), (1171, 15580), (1558, 11710), (2342, 7790), (3116, 5855), (3895, 4684)]