21731600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{449}}^1$

素因数の和:489

約数の個数: 90

約数和(自身を含む): 57515850

約数和(自身を除く): 35784250

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 440, 449, 484, 550, 605, 880, 898, 968, 1100, 1210, 1796, 1936, 2200, 2245, 2420, 3025, 3592, 4400, 4490, 4840, 4939, 6050, 7184, 8980, 9680, 9878, 11225, 12100, 17960, 19756, 22450, 24200, 24695, 35920, 39512, 44900, 48400, 49390, 54329, 79024, 89800, 98780, 108658, 123475, 179600, 197560, 217316, 246950, 271645, 395120, 434632, 493900, 543290, 869264, 987800, 1086580, 1358225, 1975600, 2173160, 2716450, 4346320, 5432900, 10865800, 21731600]

約数ペア:

[(1, 21731600), (2, 10865800), (4, 5432900), (5, 4346320), (8, 2716450), (10, 2173160), (11, 1975600), (16, 1358225), (20, 1086580), (22, 987800), (25, 869264), (40, 543290), (44, 493900), (50, 434632), (55, 395120), (80, 271645), (88, 246950), (100, 217316), (110, 197560), (121, 179600), (176, 123475), (200, 108658), (220, 98780), (242, 89800), (275, 79024), (400, 54329), (440, 49390), (449, 48400), (484, 44900), (550, 39512), (605, 35920), (880, 24695), (898, 24200), (968, 22450), (1100, 19756), (1210, 17960), (1796, 12100), (1936, 11225), (2200, 9878), (2245, 9680), (2420, 8980), (3025, 7184), (3592, 6050), (4400, 4939), (4490, 4840)]