81663580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1327}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 182722176

約数和(自身を除く): 101058596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 340, 362, 724, 905, 1327, 1810, 2654, 3077, 3620, 5308, 6154, 6635, 12308, 13270, 15385, 22559, 26540, 30770, 45118, 61540, 90236, 112795, 225590, 240187, 451180, 480374, 960748, 1200935, 2401870, 4083179, 4803740, 8166358, 16332716, 20415895, 40831790, 81663580]

約数ペア:

[(1, 81663580), (2, 40831790), (4, 20415895), (5, 16332716), (10, 8166358), (17, 4803740), (20, 4083179), (34, 2401870), (68, 1200935), (85, 960748), (170, 480374), (181, 451180), (340, 240187), (362, 225590), (724, 112795), (905, 90236), (1327, 61540), (1810, 45118), (2654, 30770), (3077, 26540), (3620, 22559), (5308, 15385), (6154, 13270), (6635, 12308)]