209851356

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 605041920

約数和(自身を除く): 395190564

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 23, 26, 33, 39, 44, 46, 52, 66, 69, 78, 92, 132, 138, 143, 156, 169, 253, 276, 286, 299, 338, 409, 429, 506, 507, 572, 598, 676, 759, 818, 858, 897, 1012, 1014, 1196, 1227, 1518, 1636, 1716, 1794, 1859, 2028, 2454, 3036, 3289, 3588, 3718, 3887, 4499, 4908, 5317, 5577, 6578, 7436, 7774, 8998, 9407, 9867, 10634, 11154, 11661, 13156, 13497, 15548, 15951, 17996, 18814, 19734, 21268, 22308, 23322, 26994, 28221, 31902, 37628, 39468, 42757, 46644, 53988, 56442, 58487, 63804, 69121, 85514, 103477, 112884, 116974, 122291, 128271, 138242, 171028, 175461, 206954, 207363, 233948, 244582, 256542, 276484, 310431, 350922, 366873, 413908, 414726, 489164, 513084, 620862, 701844, 733746, 760331, 829452, 1241724, 1345201, 1467492, 1520662, 1589783, 2280993, 2690402, 3041324, 3179566, 4035603, 4561986, 4769349, 5380804, 6359132, 8071206, 9123972, 9538698, 16142412, 17487613, 19077396, 34975226, 52462839, 69950452, 104925678, 209851356]

約数ペア:

[(1, 209851356), (2, 104925678), (3, 69950452), (4, 52462839), (6, 34975226), (11, 19077396), (12, 17487613), (13, 16142412), (22, 9538698), (23, 9123972), (26, 8071206), (33, 6359132), (39, 5380804), (44, 4769349), (46, 4561986), (52, 4035603), (66, 3179566), (69, 3041324), (78, 2690402), (92, 2280993), (132, 1589783), (138, 1520662), (143, 1467492), (156, 1345201), (169, 1241724), (253, 829452), (276, 760331), (286, 733746), (299, 701844), (338, 620862), (409, 513084), (429, 489164), (506, 414726), (507, 413908), (572, 366873), (598, 350922), (676, 310431), (759, 276484), (818, 256542), (858, 244582), (897, 233948), (1012, 207363), (1014, 206954), (1196, 175461), (1227, 171028), (1518, 138242), (1636, 128271), (1716, 122291), (1794, 116974), (1859, 112884), (2028, 103477), (2454, 85514), (3036, 69121), (3289, 63804), (3588, 58487), (3718, 56442), (3887, 53988), (4499, 46644), (4908, 42757), (5317, 39468), (5577, 37628), (6578, 31902), (7436, 28221), (7774, 26994), (8998, 23322), (9407, 22308), (9867, 21268), (10634, 19734), (11154, 18814), (11661, 17996), (13156, 15951), (13497, 15548)]