20776700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 52413312

約数和(自身を除く): 31636612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 443, 469, 670, 700, 886, 938, 1340, 1675, 1772, 1876, 2215, 2345, 3101, 3350, 4430, 4690, 6202, 6700, 8860, 9380, 11075, 11725, 12404, 15505, 22150, 23450, 29681, 31010, 44300, 46900, 59362, 62020, 77525, 118724, 148405, 155050, 207767, 296810, 310100, 415534, 593620, 742025, 831068, 1038835, 1484050, 2077670, 2968100, 4155340, 5194175, 10388350, 20776700]

約数ペア:

[(1, 20776700), (2, 10388350), (4, 5194175), (5, 4155340), (7, 2968100), (10, 2077670), (14, 1484050), (20, 1038835), (25, 831068), (28, 742025), (35, 593620), (50, 415534), (67, 310100), (70, 296810), (100, 207767), (134, 155050), (140, 148405), (175, 118724), (268, 77525), (335, 62020), (350, 59362), (443, 46900), (469, 44300), (670, 31010), (700, 29681), (886, 23450), (938, 22150), (1340, 15505), (1675, 12404), (1772, 11725), (1876, 11075), (2215, 9380), (2345, 8860), (3101, 6700), (3350, 6202), (4430, 4690)]