20840285340

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5513303}}^1$

素因数の和:5513328

約数の個数: 96

約数和(自身を含む): 74098805760

約数和(自身を除く): 53258520420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5513303, 11026606, 16539909, 22053212, 27566515, 33079818, 38593121, 49619727, 55133030, 66159636, 77186242, 82699545, 99239454, 110266060, 115779363, 148859181, 154372484, 165399090, 192965605, 198478908, 231558726, 248098635, 297718362, 330798180, 347338089, 385931210, 463117452, 496197270, 578896815, 595436724, 694676178, 744295905, 771862420, 992394540, 1042014267, 1157793630, 1389352356, 1488591810, 1736690445, 2084028534, 2315587260, 2977183620, 3473380890, 4168057068, 5210071335, 6946761780, 10420142670, 20840285340]

約数ペア:

[(1, 20840285340), (2, 10420142670), (3, 6946761780), (4, 5210071335), (5, 4168057068), (6, 3473380890), (7, 2977183620), (9, 2315587260), (10, 2084028534), (12, 1736690445), (14, 1488591810), (15, 1389352356), (18, 1157793630), (20, 1042014267), (21, 992394540), (27, 771862420), (28, 744295905), (30, 694676178), (35, 595436724), (36, 578896815), (42, 496197270), (45, 463117452), (54, 385931210), (60, 347338089), (63, 330798180), (70, 297718362), (84, 248098635), (90, 231558726), (105, 198478908), (108, 192965605), (126, 165399090), (135, 154372484), (140, 148859181), (180, 115779363), (189, 110266060), (210, 99239454), (252, 82699545), (270, 77186242), (315, 66159636), (378, 55133030), (420, 49619727), (540, 38593121), (630, 33079818), (756, 27566515), (945, 22053212), (1260, 16539909), (1890, 11026606), (3780, 5513303)]