84047740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 207128880

約数和(自身を除く): 123081140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 196, 245, 278, 490, 556, 617, 695, 973, 980, 1234, 1390, 1946, 2468, 2780, 3085, 3892, 4319, 4865, 6170, 6811, 8638, 9730, 12340, 13622, 17276, 19460, 21595, 27244, 30233, 34055, 43190, 60466, 68110, 85763, 86380, 120932, 136220, 151165, 171526, 302330, 343052, 428815, 600341, 604660, 857630, 1200682, 1715260, 2401364, 3001705, 4202387, 6003410, 8404774, 12006820, 16809548, 21011935, 42023870, 84047740]

約数ペア:

[(1, 84047740), (2, 42023870), (4, 21011935), (5, 16809548), (7, 12006820), (10, 8404774), (14, 6003410), (20, 4202387), (28, 3001705), (35, 2401364), (49, 1715260), (70, 1200682), (98, 857630), (139, 604660), (140, 600341), (196, 428815), (245, 343052), (278, 302330), (490, 171526), (556, 151165), (617, 136220), (695, 120932), (973, 86380), (980, 85763), (1234, 68110), (1390, 60466), (1946, 43190), (2468, 34055), (2780, 30233), (3085, 27244), (3892, 21595), (4319, 19460), (4865, 17276), (6170, 13622), (6811, 12340), (8638, 9730)]