78987260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7639}}^1$

素因数の和:7706

約数の個数: 48

約数和(自身を含む): 184826880

約数和(自身を除く): 105839620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 5170, 7639, 10340, 15278, 30556, 38195, 76390, 84029, 152780, 168058, 336116, 359033, 420145, 718066, 840290, 1436132, 1680580, 1795165, 3590330, 3949363, 7180660, 7898726, 15797452, 19746815, 39493630, 78987260]

約数ペア:

[(1, 78987260), (2, 39493630), (4, 19746815), (5, 15797452), (10, 7898726), (11, 7180660), (20, 3949363), (22, 3590330), (44, 1795165), (47, 1680580), (55, 1436132), (94, 840290), (110, 718066), (188, 420145), (220, 359033), (235, 336116), (470, 168058), (517, 152780), (940, 84029), (1034, 76390), (2068, 38195), (2585, 30556), (5170, 15278), (7639, 10340)]