18391040

素因数分解:

$2^{13}\times 5^1\times {\mathrm{449}}^1$

素因数の和:480

約数の個数: 56

約数和(自身を含む): 44234100

約数和(自身を除く): 25843060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 449, 512, 640, 898, 1024, 1280, 1796, 2048, 2245, 2560, 3592, 4096, 4490, 5120, 7184, 8192, 8980, 10240, 14368, 17960, 20480, 28736, 35920, 40960, 57472, 71840, 114944, 143680, 229888, 287360, 459776, 574720, 919552, 1149440, 1839104, 2298880, 3678208, 4597760, 9195520, 18391040]

約数ペア:

[(1, 18391040), (2, 9195520), (4, 4597760), (5, 3678208), (8, 2298880), (10, 1839104), (16, 1149440), (20, 919552), (32, 574720), (40, 459776), (64, 287360), (80, 229888), (128, 143680), (160, 114944), (256, 71840), (320, 57472), (449, 40960), (512, 35920), (640, 28736), (898, 20480), (1024, 17960), (1280, 14368), (1796, 10240), (2048, 8980), (2245, 8192), (2560, 7184), (3592, 5120), (4096, 4490)]