80164040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 212889600

約数和(自身を除く): 132725560

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 43, 44, 55, 76, 86, 88, 95, 110, 152, 172, 190, 209, 215, 220, 223, 344, 380, 418, 430, 440, 446, 473, 760, 817, 836, 860, 892, 946, 1045, 1115, 1634, 1672, 1720, 1784, 1892, 2090, 2230, 2365, 2453, 3268, 3784, 4085, 4180, 4237, 4460, 4730, 4906, 6536, 8170, 8360, 8474, 8920, 8987, 9460, 9589, 9812, 12265, 16340, 16948, 17974, 18920, 19178, 19624, 21185, 24530, 32680, 33896, 35948, 38356, 42370, 44935, 46607, 47945, 49060, 71896, 76712, 84740, 89870, 93214, 95890, 98120, 105479, 169480, 179740, 182191, 186428, 191780, 210958, 233035, 359480, 364382, 372856, 383560, 421916, 466070, 527395, 728764, 843832, 910955, 932140, 1054790, 1457528, 1821910, 1864280, 2004101, 2109580, 3643820, 4008202, 4219160, 7287640, 8016404, 10020505, 16032808, 20041010, 40082020, 80164040]

約数ペア:

[(1, 80164040), (2, 40082020), (4, 20041010), (5, 16032808), (8, 10020505), (10, 8016404), (11, 7287640), (19, 4219160), (20, 4008202), (22, 3643820), (38, 2109580), (40, 2004101), (43, 1864280), (44, 1821910), (55, 1457528), (76, 1054790), (86, 932140), (88, 910955), (95, 843832), (110, 728764), (152, 527395), (172, 466070), (190, 421916), (209, 383560), (215, 372856), (220, 364382), (223, 359480), (344, 233035), (380, 210958), (418, 191780), (430, 186428), (440, 182191), (446, 179740), (473, 169480), (760, 105479), (817, 98120), (836, 95890), (860, 93214), (892, 89870), (946, 84740), (1045, 76712), (1115, 71896), (1634, 49060), (1672, 47945), (1720, 46607), (1784, 44935), (1892, 42370), (2090, 38356), (2230, 35948), (2365, 33896), (2453, 32680), (3268, 24530), (3784, 21185), (4085, 19624), (4180, 19178), (4237, 18920), (4460, 17974), (4730, 16948), (4906, 16340), (6536, 12265), (8170, 9812), (8360, 9589), (8474, 9460), (8920, 8987)]