28544560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 73209600

約数和(自身を除く): 44665040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 163, 176, 199, 220, 326, 398, 440, 652, 796, 815, 880, 995, 1304, 1592, 1630, 1793, 1990, 2189, 2608, 3184, 3260, 3586, 3980, 4378, 6520, 7172, 7960, 8756, 8965, 10945, 13040, 14344, 15920, 17512, 17930, 21890, 28688, 32437, 35024, 35860, 43780, 64874, 71720, 87560, 129748, 143440, 162185, 175120, 259496, 324370, 356807, 518992, 648740, 713614, 1297480, 1427228, 1784035, 2594960, 2854456, 3568070, 5708912, 7136140, 14272280, 28544560]

約数ペア:

[(1, 28544560), (2, 14272280), (4, 7136140), (5, 5708912), (8, 3568070), (10, 2854456), (11, 2594960), (16, 1784035), (20, 1427228), (22, 1297480), (40, 713614), (44, 648740), (55, 518992), (80, 356807), (88, 324370), (110, 259496), (163, 175120), (176, 162185), (199, 143440), (220, 129748), (326, 87560), (398, 71720), (440, 64874), (652, 43780), (796, 35860), (815, 35024), (880, 32437), (995, 28688), (1304, 21890), (1592, 17930), (1630, 17512), (1793, 15920), (1990, 14344), (2189, 13040), (2608, 10945), (3184, 8965), (3260, 8756), (3586, 7960), (3980, 7172), (4378, 6520)]