1275991780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1565

約数の個数: 96

約数和(自身を含む): 3251791872

約数和(自身を除く): 1975800092

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 541, 595, 991, 1082, 1190, 1982, 2164, 2380, 2705, 3787, 3964, 4955, 5410, 6937, 7574, 9197, 9910, 10820, 13874, 15148, 16847, 18394, 18935, 19820, 27748, 33694, 34685, 36788, 37870, 45985, 64379, 67388, 69370, 75740, 84235, 91970, 117929, 128758, 138740, 168470, 183940, 235858, 257516, 321895, 336940, 471716, 536131, 589645, 643790, 1072262, 1179290, 1287580, 2144524, 2358580, 2680655, 3752917, 5361310, 7505834, 9114227, 10722620, 15011668, 18228454, 18764585, 36456908, 37529170, 45571135, 63799589, 75058340, 91142270, 127599178, 182284540, 255198356, 318997945, 637995890, 1275991780]

約数ペア:

[(1, 1275991780), (2, 637995890), (4, 318997945), (5, 255198356), (7, 182284540), (10, 127599178), (14, 91142270), (17, 75058340), (20, 63799589), (28, 45571135), (34, 37529170), (35, 36456908), (68, 18764585), (70, 18228454), (85, 15011668), (119, 10722620), (140, 9114227), (170, 7505834), (238, 5361310), (340, 3752917), (476, 2680655), (541, 2358580), (595, 2144524), (991, 1287580), (1082, 1179290), (1190, 1072262), (1982, 643790), (2164, 589645), (2380, 536131), (2705, 471716), (3787, 336940), (3964, 321895), (4955, 257516), (5410, 235858), (6937, 183940), (7574, 168470), (9197, 138740), (9910, 128758), (10820, 117929), (13874, 91970), (15148, 84235), (16847, 75740), (18394, 69370), (18935, 67388), (19820, 64379), (27748, 45985), (33694, 37870), (34685, 36788)]