130416640

素因数分解:

$2^{17}\times 5^1\times {\mathrm{199}}^1$

素因数の和:238

約数の個数: 72

約数和(自身を含む): 314571600

約数和(自身を除く): 184154960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 398, 512, 640, 796, 995, 1024, 1280, 1592, 1990, 2048, 2560, 3184, 3980, 4096, 5120, 6368, 7960, 8192, 10240, 12736, 15920, 16384, 20480, 25472, 31840, 32768, 40960, 50944, 63680, 65536, 81920, 101888, 127360, 131072, 163840, 203776, 254720, 327680, 407552, 509440, 655360, 815104, 1018880, 1630208, 2037760, 3260416, 4075520, 6520832, 8151040, 13041664, 16302080, 26083328, 32604160, 65208320, 130416640]

約数ペア:

[(1, 130416640), (2, 65208320), (4, 32604160), (5, 26083328), (8, 16302080), (10, 13041664), (16, 8151040), (20, 6520832), (32, 4075520), (40, 3260416), (64, 2037760), (80, 1630208), (128, 1018880), (160, 815104), (199, 655360), (256, 509440), (320, 407552), (398, 327680), (512, 254720), (640, 203776), (796, 163840), (995, 131072), (1024, 127360), (1280, 101888), (1592, 81920), (1990, 65536), (2048, 63680), (2560, 50944), (3184, 40960), (3980, 32768), (4096, 31840), (5120, 25472), (6368, 20480), (7960, 16384), (8192, 15920), (10240, 12736)]