90398720

素因数分解:

$2^{13}\times 5^1\times {\mathrm{2207}}^1$

素因数の和:2238

約数の個数: 56

約数和(自身を含む): 217041984

約数和(自身を除く): 126643264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2207, 2560, 4096, 4414, 5120, 8192, 8828, 10240, 11035, 17656, 20480, 22070, 35312, 40960, 44140, 70624, 88280, 141248, 176560, 282496, 353120, 564992, 706240, 1129984, 1412480, 2259968, 2824960, 4519936, 5649920, 9039872, 11299840, 18079744, 22599680, 45199360, 90398720]

約数ペア:

[(1, 90398720), (2, 45199360), (4, 22599680), (5, 18079744), (8, 11299840), (10, 9039872), (16, 5649920), (20, 4519936), (32, 2824960), (40, 2259968), (64, 1412480), (80, 1129984), (128, 706240), (160, 564992), (256, 353120), (320, 282496), (512, 176560), (640, 141248), (1024, 88280), (1280, 70624), (2048, 44140), (2207, 40960), (2560, 35312), (4096, 22070), (4414, 20480), (5120, 17656), (8192, 11035), (8828, 10240)]