28774400

素因数分解:

$2^{12}\times 5^2\times {\mathrm{281}}^1$

素因数の和:315

約数の個数: 78

約数和(自身を含む): 71605722

約数和(自身を除く): 42831322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 281, 320, 400, 512, 562, 640, 800, 1024, 1124, 1280, 1405, 1600, 2048, 2248, 2560, 2810, 3200, 4096, 4496, 5120, 5620, 6400, 7025, 8992, 10240, 11240, 12800, 14050, 17984, 20480, 22480, 25600, 28100, 35968, 44960, 51200, 56200, 71936, 89920, 102400, 112400, 143872, 179840, 224800, 287744, 359680, 449600, 575488, 719360, 899200, 1150976, 1438720, 1798400, 2877440, 3596800, 5754880, 7193600, 14387200, 28774400]

約数ペア:

[(1, 28774400), (2, 14387200), (4, 7193600), (5, 5754880), (8, 3596800), (10, 2877440), (16, 1798400), (20, 1438720), (25, 1150976), (32, 899200), (40, 719360), (50, 575488), (64, 449600), (80, 359680), (100, 287744), (128, 224800), (160, 179840), (200, 143872), (256, 112400), (281, 102400), (320, 89920), (400, 71936), (512, 56200), (562, 51200), (640, 44960), (800, 35968), (1024, 28100), (1124, 25600), (1280, 22480), (1405, 20480), (1600, 17984), (2048, 14050), (2248, 12800), (2560, 11240), (2810, 10240), (3200, 8992), (4096, 7025), (4496, 6400), (5120, 5620)]