278194840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2203}}^1$

素因数の和:2273

約数の個数: 128

約数和(自身を含む): 799787520

約数和(自身を除く): 521592680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 82, 88, 110, 140, 154, 164, 205, 220, 280, 287, 308, 328, 385, 410, 440, 451, 574, 616, 770, 820, 902, 1148, 1435, 1540, 1640, 1804, 2203, 2255, 2296, 2870, 3080, 3157, 3608, 4406, 4510, 5740, 6314, 8812, 9020, 11015, 11480, 12628, 15421, 15785, 17624, 18040, 22030, 24233, 25256, 30842, 31570, 44060, 48466, 61684, 63140, 77105, 88120, 90323, 96932, 121165, 123368, 126280, 154210, 169631, 180646, 193864, 242330, 308420, 339262, 361292, 451615, 484660, 616840, 632261, 678524, 722584, 848155, 903230, 969320, 993553, 1264522, 1357048, 1696310, 1806460, 1987106, 2529044, 3161305, 3392620, 3612920, 3974212, 4967765, 5058088, 6322610, 6785240, 6954871, 7948424, 9935530, 12645220, 13909742, 19871060, 25290440, 27819484, 34774355, 39742120, 55638968, 69548710, 139097420, 278194840]

約数ペア:

[(1, 278194840), (2, 139097420), (4, 69548710), (5, 55638968), (7, 39742120), (8, 34774355), (10, 27819484), (11, 25290440), (14, 19871060), (20, 13909742), (22, 12645220), (28, 9935530), (35, 7948424), (40, 6954871), (41, 6785240), (44, 6322610), (55, 5058088), (56, 4967765), (70, 3974212), (77, 3612920), (82, 3392620), (88, 3161305), (110, 2529044), (140, 1987106), (154, 1806460), (164, 1696310), (205, 1357048), (220, 1264522), (280, 993553), (287, 969320), (308, 903230), (328, 848155), (385, 722584), (410, 678524), (440, 632261), (451, 616840), (574, 484660), (616, 451615), (770, 361292), (820, 339262), (902, 308420), (1148, 242330), (1435, 193864), (1540, 180646), (1640, 169631), (1804, 154210), (2203, 126280), (2255, 123368), (2296, 121165), (2870, 96932), (3080, 90323), (3157, 88120), (3608, 77105), (4406, 63140), (4510, 61684), (5740, 48466), (6314, 44060), (8812, 31570), (9020, 30842), (11015, 25256), (11480, 24233), (12628, 22030), (15421, 18040), (15785, 17624)]