681384536

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 1608076800

約数和(自身を除く): 926692264

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 43, 53, 56, 76, 86, 106, 133, 152, 172, 212, 266, 281, 301, 344, 371, 424, 532, 562, 602, 742, 817, 1007, 1064, 1124, 1204, 1484, 1634, 1967, 2014, 2248, 2279, 2408, 2968, 3268, 3934, 4028, 4558, 5339, 5719, 6536, 7049, 7868, 8056, 9116, 10678, 11438, 12083, 14098, 14893, 15736, 15953, 18232, 21356, 22876, 24166, 28196, 29786, 31906, 37373, 42712, 43301, 45752, 48332, 56392, 59572, 63812, 74746, 84581, 86602, 96664, 104251, 119144, 127624, 149492, 169162, 173204, 208502, 229577, 282967, 298984, 303107, 338324, 346408, 417004, 459154, 565934, 606214, 640399, 676648, 834008, 918308, 1131868, 1212428, 1280798, 1607039, 1836616, 1980769, 2263736, 2424856, 2561596, 3214078, 3961538, 4482793, 5123192, 6428156, 7923076, 8965586, 12167581, 12856312, 15846152, 17931172, 24335162, 35862344, 48670324, 85173067, 97340648, 170346134, 340692268, 681384536]

約数ペア:

[(1, 681384536), (2, 340692268), (4, 170346134), (7, 97340648), (8, 85173067), (14, 48670324), (19, 35862344), (28, 24335162), (38, 17931172), (43, 15846152), (53, 12856312), (56, 12167581), (76, 8965586), (86, 7923076), (106, 6428156), (133, 5123192), (152, 4482793), (172, 3961538), (212, 3214078), (266, 2561596), (281, 2424856), (301, 2263736), (344, 1980769), (371, 1836616), (424, 1607039), (532, 1280798), (562, 1212428), (602, 1131868), (742, 918308), (817, 834008), (1007, 676648), (1064, 640399), (1124, 606214), (1204, 565934), (1484, 459154), (1634, 417004), (1967, 346408), (2014, 338324), (2248, 303107), (2279, 298984), (2408, 282967), (2968, 229577), (3268, 208502), (3934, 173204), (4028, 169162), (4558, 149492), (5339, 127624), (5719, 119144), (6536, 104251), (7049, 96664), (7868, 86602), (8056, 84581), (9116, 74746), (10678, 63812), (11438, 59572), (12083, 56392), (14098, 48332), (14893, 45752), (15736, 43301), (15953, 42712), (18232, 37373), (21356, 31906), (22876, 29786), (24166, 28196)]