72816640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 188501040

約数和(自身を除く): 115684400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 547, 640, 832, 1024, 1040, 1094, 1280, 1664, 2048, 2080, 2188, 2560, 2735, 3328, 4160, 4376, 5120, 5470, 6656, 7111, 8320, 8752, 10240, 10940, 13312, 14222, 16640, 17504, 21880, 26624, 28444, 33280, 35008, 35555, 43760, 56888, 66560, 70016, 71110, 87520, 113776, 133120, 140032, 142220, 175040, 227552, 280064, 284440, 350080, 455104, 560128, 568880, 700160, 910208, 1120256, 1137760, 1400320, 1820416, 2275520, 2800640, 3640832, 4551040, 5601280, 7281664, 9102080, 14563328, 18204160, 36408320, 72816640]

約数ペア:

[(1, 72816640), (2, 36408320), (4, 18204160), (5, 14563328), (8, 9102080), (10, 7281664), (13, 5601280), (16, 4551040), (20, 3640832), (26, 2800640), (32, 2275520), (40, 1820416), (52, 1400320), (64, 1137760), (65, 1120256), (80, 910208), (104, 700160), (128, 568880), (130, 560128), (160, 455104), (208, 350080), (256, 284440), (260, 280064), (320, 227552), (416, 175040), (512, 142220), (520, 140032), (547, 133120), (640, 113776), (832, 87520), (1024, 71110), (1040, 70016), (1094, 66560), (1280, 56888), (1664, 43760), (2048, 35555), (2080, 35008), (2188, 33280), (2560, 28444), (2735, 26624), (3328, 21880), (4160, 17504), (4376, 16640), (5120, 14222), (5470, 13312), (6656, 10940), (7111, 10240), (8320, 8752)]