20063260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1031}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 48545280

約数和(自身を除く): 28482020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1031, 1390, 1946, 2062, 2780, 3892, 4124, 4865, 5155, 7217, 9730, 10310, 14434, 19460, 20620, 28868, 36085, 72170, 143309, 144340, 286618, 573236, 716545, 1003163, 1433090, 2006326, 2866180, 4012652, 5015815, 10031630, 20063260]

約数ペア:

[(1, 20063260), (2, 10031630), (4, 5015815), (5, 4012652), (7, 2866180), (10, 2006326), (14, 1433090), (20, 1003163), (28, 716545), (35, 573236), (70, 286618), (139, 144340), (140, 143309), (278, 72170), (556, 36085), (695, 28868), (973, 20620), (1031, 19460), (1390, 14434), (1946, 10310), (2062, 9730), (2780, 7217), (3892, 5155), (4124, 4865)]