81118400

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^2\times {\mathrm{419}}^1$

素因数の和:463

約数の個数: 126

約数和(自身を含む): 219920820

約数和(自身を除く): 138802420

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 121, 160, 176, 200, 220, 242, 275, 320, 352, 400, 419, 440, 484, 550, 605, 704, 800, 838, 880, 968, 1100, 1210, 1600, 1676, 1760, 1936, 2095, 2200, 2420, 3025, 3352, 3520, 3872, 4190, 4400, 4609, 4840, 6050, 6704, 7744, 8380, 8800, 9218, 9680, 10475, 12100, 13408, 16760, 17600, 18436, 19360, 20950, 23045, 24200, 26816, 33520, 36872, 38720, 41900, 46090, 48400, 50699, 67040, 73744, 83800, 92180, 96800, 101398, 115225, 134080, 147488, 167600, 184360, 193600, 202796, 230450, 253495, 294976, 335200, 368720, 405592, 460900, 506990, 670400, 737440, 811184, 921800, 1013980, 1267475, 1474880, 1622368, 1843600, 2027960, 2534950, 3244736, 3687200, 4055920, 5069900, 7374400, 8111840, 10139800, 16223680, 20279600, 40559200, 81118400]

約数ペア:

[(1, 81118400), (2, 40559200), (4, 20279600), (5, 16223680), (8, 10139800), (10, 8111840), (11, 7374400), (16, 5069900), (20, 4055920), (22, 3687200), (25, 3244736), (32, 2534950), (40, 2027960), (44, 1843600), (50, 1622368), (55, 1474880), (64, 1267475), (80, 1013980), (88, 921800), (100, 811184), (110, 737440), (121, 670400), (160, 506990), (176, 460900), (200, 405592), (220, 368720), (242, 335200), (275, 294976), (320, 253495), (352, 230450), (400, 202796), (419, 193600), (440, 184360), (484, 167600), (550, 147488), (605, 134080), (704, 115225), (800, 101398), (838, 96800), (880, 92180), (968, 83800), (1100, 73744), (1210, 67040), (1600, 50699), (1676, 48400), (1760, 46090), (1936, 41900), (2095, 38720), (2200, 36872), (2420, 33520), (3025, 26816), (3352, 24200), (3520, 23045), (3872, 20950), (4190, 19360), (4400, 18436), (4609, 17600), (4840, 16760), (6050, 13408), (6704, 12100), (7744, 10475), (8380, 9680), (8800, 9218)]