20728088

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22817512

約数列:

[1, 2, 4, 8, 19, 31, 38, 53, 62, 76, 83, 106, 124, 152, 166, 212, 248, 332, 424, 589, 664, 1007, 1178, 1577, 1643, 2014, 2356, 2573, 3154, 3286, 4028, 4399, 4712, 5146, 6308, 6572, 8056, 8798, 10292, 12616, 13144, 17596, 20584, 31217, 35192, 48887, 62434, 83581, 97774, 124868, 136369, 167162, 195548, 249736, 272738, 334324, 391096, 545476, 668648, 1090952, 2591011, 5182022, 10364044, 20728088]

約数ペア:

[(1, 20728088), (2, 10364044), (4, 5182022), (8, 2591011), (19, 1090952), (31, 668648), (38, 545476), (53, 391096), (62, 334324), (76, 272738), (83, 249736), (106, 195548), (124, 167162), (152, 136369), (166, 124868), (212, 97774), (248, 83581), (332, 62434), (424, 48887), (589, 35192), (664, 31217), (1007, 20584), (1178, 17596), (1577, 13144), (1643, 12616), (2014, 10292), (2356, 8798), (2573, 8056), (3154, 6572), (3286, 6308), (4028, 5146), (4399, 4712)]