28062040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 65862720

約数和(自身を除く): 37800680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 241, 284, 328, 355, 410, 482, 568, 710, 820, 964, 1205, 1420, 1640, 1928, 2410, 2840, 2911, 4820, 5822, 9640, 9881, 11644, 14555, 17111, 19762, 23288, 29110, 34222, 39524, 49405, 58220, 68444, 79048, 85555, 98810, 116440, 136888, 171110, 197620, 342220, 395240, 684440, 701551, 1403102, 2806204, 3507755, 5612408, 7015510, 14031020, 28062040]

約数ペア:

[(1, 28062040), (2, 14031020), (4, 7015510), (5, 5612408), (8, 3507755), (10, 2806204), (20, 1403102), (40, 701551), (41, 684440), (71, 395240), (82, 342220), (142, 197620), (164, 171110), (205, 136888), (241, 116440), (284, 98810), (328, 85555), (355, 79048), (410, 68444), (482, 58220), (568, 49405), (710, 39524), (820, 34222), (964, 29110), (1205, 23288), (1420, 19762), (1640, 17111), (1928, 14555), (2410, 11644), (2840, 9881), (2911, 9640), (4820, 5822)]