20179040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:484

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 35704480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 419, 430, 560, 602, 688, 838, 860, 1120, 1204, 1376, 1505, 1676, 1720, 2095, 2408, 2933, 3010, 3352, 3440, 4190, 4816, 5866, 6020, 6704, 6880, 8380, 9632, 11732, 12040, 13408, 14665, 16760, 18017, 23464, 24080, 29330, 33520, 36034, 46928, 48160, 58660, 67040, 72068, 90085, 93856, 117320, 126119, 144136, 180170, 234640, 252238, 288272, 360340, 469280, 504476, 576544, 630595, 720680, 1008952, 1261190, 1441360, 2017904, 2522380, 2882720, 4035808, 5044760, 10089520, 20179040]

約数ペア:

[(1, 20179040), (2, 10089520), (4, 5044760), (5, 4035808), (7, 2882720), (8, 2522380), (10, 2017904), (14, 1441360), (16, 1261190), (20, 1008952), (28, 720680), (32, 630595), (35, 576544), (40, 504476), (43, 469280), (56, 360340), (70, 288272), (80, 252238), (86, 234640), (112, 180170), (140, 144136), (160, 126119), (172, 117320), (215, 93856), (224, 90085), (280, 72068), (301, 67040), (344, 58660), (419, 48160), (430, 46928), (560, 36034), (602, 33520), (688, 29330), (838, 24080), (860, 23464), (1120, 18017), (1204, 16760), (1376, 14665), (1505, 13408), (1676, 12040), (1720, 11732), (2095, 9632), (2408, 8380), (2933, 6880), (3010, 6704), (3352, 6020), (3440, 5866), (4190, 4816)]