79780480

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 211115520

約数和(自身を除く): 131335040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 160, 172, 208, 215, 223, 260, 320, 344, 416, 430, 446, 520, 559, 640, 688, 832, 860, 892, 1040, 1115, 1118, 1376, 1664, 1720, 1784, 2080, 2230, 2236, 2752, 2795, 2899, 3440, 3568, 4160, 4460, 4472, 5504, 5590, 5798, 6880, 7136, 8320, 8920, 8944, 9589, 11180, 11596, 13760, 14272, 14495, 17840, 17888, 19178, 22360, 23192, 27520, 28544, 28990, 35680, 35776, 38356, 44720, 46384, 47945, 57980, 71360, 71552, 76712, 89440, 92768, 95890, 115960, 124657, 142720, 153424, 178880, 185536, 191780, 231920, 249314, 306848, 357760, 371072, 383560, 463840, 498628, 613696, 623285, 767120, 927680, 997256, 1227392, 1246570, 1534240, 1855360, 1994512, 2493140, 3068480, 3989024, 4986280, 6136960, 7978048, 9972560, 15956096, 19945120, 39890240, 79780480]

約数ペア:

[(1, 79780480), (2, 39890240), (4, 19945120), (5, 15956096), (8, 9972560), (10, 7978048), (13, 6136960), (16, 4986280), (20, 3989024), (26, 3068480), (32, 2493140), (40, 1994512), (43, 1855360), (52, 1534240), (64, 1246570), (65, 1227392), (80, 997256), (86, 927680), (104, 767120), (128, 623285), (130, 613696), (160, 498628), (172, 463840), (208, 383560), (215, 371072), (223, 357760), (260, 306848), (320, 249314), (344, 231920), (416, 191780), (430, 185536), (446, 178880), (520, 153424), (559, 142720), (640, 124657), (688, 115960), (832, 95890), (860, 92768), (892, 89440), (1040, 76712), (1115, 71552), (1118, 71360), (1376, 57980), (1664, 47945), (1720, 46384), (1784, 44720), (2080, 38356), (2230, 35776), (2236, 35680), (2752, 28990), (2795, 28544), (2899, 27520), (3440, 23192), (3568, 22360), (4160, 19178), (4460, 17888), (4472, 17840), (5504, 14495), (5590, 14272), (5798, 13760), (6880, 11596), (7136, 11180), (8320, 9589), (8920, 8944)]