204390400

素因数分解:

$2^{14}\times 5^2\times {\mathrm{499}}^1$

素因数の和:537

約数の個数: 90

約数和(自身を含む): 507888500

約数和(自身を除く): 303498100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 499, 512, 640, 800, 998, 1024, 1280, 1600, 1996, 2048, 2495, 2560, 3200, 3992, 4096, 4990, 5120, 6400, 7984, 8192, 9980, 10240, 12475, 12800, 15968, 16384, 19960, 20480, 24950, 25600, 31936, 39920, 40960, 49900, 51200, 63872, 79840, 81920, 99800, 102400, 127744, 159680, 199600, 204800, 255488, 319360, 399200, 409600, 510976, 638720, 798400, 1021952, 1277440, 1596800, 2043904, 2554880, 3193600, 4087808, 5109760, 6387200, 8175616, 10219520, 12774400, 20439040, 25548800, 40878080, 51097600, 102195200, 204390400]

約数ペア:

[(1, 204390400), (2, 102195200), (4, 51097600), (5, 40878080), (8, 25548800), (10, 20439040), (16, 12774400), (20, 10219520), (25, 8175616), (32, 6387200), (40, 5109760), (50, 4087808), (64, 3193600), (80, 2554880), (100, 2043904), (128, 1596800), (160, 1277440), (200, 1021952), (256, 798400), (320, 638720), (400, 510976), (499, 409600), (512, 399200), (640, 319360), (800, 255488), (998, 204800), (1024, 199600), (1280, 159680), (1600, 127744), (1996, 102400), (2048, 99800), (2495, 81920), (2560, 79840), (3200, 63872), (3992, 51200), (4096, 49900), (4990, 40960), (5120, 39920), (6400, 31936), (7984, 25600), (8192, 24950), (9980, 20480), (10240, 19960), (12475, 16384), (12800, 15968)]