19680984

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 56019600

約数和(自身を除く): 36338616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 59, 72, 82, 113, 118, 123, 164, 177, 226, 236, 246, 328, 339, 354, 369, 452, 472, 492, 531, 678, 708, 738, 904, 984, 1017, 1062, 1356, 1416, 1476, 2034, 2124, 2419, 2712, 2952, 4068, 4248, 4633, 4838, 6667, 7257, 8136, 9266, 9676, 13334, 13899, 14514, 18532, 19352, 20001, 21771, 26668, 27798, 29028, 37064, 40002, 41697, 43542, 53336, 55596, 58056, 60003, 80004, 83394, 87084, 111192, 120006, 160008, 166788, 174168, 240012, 273347, 333576, 480024, 546694, 820041, 1093388, 1640082, 2186776, 2460123, 3280164, 4920246, 6560328, 9840492, 19680984]

約数ペア:

[(1, 19680984), (2, 9840492), (3, 6560328), (4, 4920246), (6, 3280164), (8, 2460123), (9, 2186776), (12, 1640082), (18, 1093388), (24, 820041), (36, 546694), (41, 480024), (59, 333576), (72, 273347), (82, 240012), (113, 174168), (118, 166788), (123, 160008), (164, 120006), (177, 111192), (226, 87084), (236, 83394), (246, 80004), (328, 60003), (339, 58056), (354, 55596), (369, 53336), (452, 43542), (472, 41697), (492, 40002), (531, 37064), (678, 29028), (708, 27798), (738, 26668), (904, 21771), (984, 20001), (1017, 19352), (1062, 18532), (1356, 14514), (1416, 13899), (1476, 13334), (2034, 9676), (2124, 9266), (2419, 8136), (2712, 7257), (2952, 6667), (4068, 4838), (4248, 4633)]