80253040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1031}}^1$

素因数の和:1190

約数の個数: 80

約数和(自身を含む): 214986240

約数和(自身を除く): 134733200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1031, 1112, 1390, 1946, 2062, 2224, 2780, 3892, 4124, 4865, 5155, 5560, 7217, 7784, 8248, 9730, 10310, 11120, 14434, 15568, 16496, 19460, 20620, 28868, 36085, 38920, 41240, 57736, 72170, 77840, 82480, 115472, 143309, 144340, 286618, 288680, 573236, 577360, 716545, 1003163, 1146472, 1433090, 2006326, 2292944, 2866180, 4012652, 5015815, 5732360, 8025304, 10031630, 11464720, 16050608, 20063260, 40126520, 80253040]

約数ペア:

[(1, 80253040), (2, 40126520), (4, 20063260), (5, 16050608), (7, 11464720), (8, 10031630), (10, 8025304), (14, 5732360), (16, 5015815), (20, 4012652), (28, 2866180), (35, 2292944), (40, 2006326), (56, 1433090), (70, 1146472), (80, 1003163), (112, 716545), (139, 577360), (140, 573236), (278, 288680), (280, 286618), (556, 144340), (560, 143309), (695, 115472), (973, 82480), (1031, 77840), (1112, 72170), (1390, 57736), (1946, 41240), (2062, 38920), (2224, 36085), (2780, 28868), (3892, 20620), (4124, 19460), (4865, 16496), (5155, 15568), (5560, 14434), (7217, 11120), (7784, 10310), (8248, 9730)]