1799972720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{247249}}^1$

素因数の和:247282

約数の個数: 80

約数和(自身を含む): 5150712000

約数和(自身を除く): 3350739280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 247249, 494498, 988996, 1236245, 1730743, 1977992, 2472490, 3214237, 3461486, 3955984, 4944980, 6428474, 6922972, 8653715, 9889960, 12856948, 13845944, 16071185, 17307430, 19779920, 22499659, 25713896, 27691888, 32142370, 34614860, 44999318, 51427792, 64284740, 69229720, 89998636, 112498295, 128569480, 138459440, 179997272, 224996590, 257138960, 359994544, 449993180, 899986360, 1799972720]

約数ペア:

[(1, 1799972720), (2, 899986360), (4, 449993180), (5, 359994544), (7, 257138960), (8, 224996590), (10, 179997272), (13, 138459440), (14, 128569480), (16, 112498295), (20, 89998636), (26, 69229720), (28, 64284740), (35, 51427792), (40, 44999318), (52, 34614860), (56, 32142370), (65, 27691888), (70, 25713896), (80, 22499659), (91, 19779920), (104, 17307430), (112, 16071185), (130, 13845944), (140, 12856948), (182, 9889960), (208, 8653715), (260, 6922972), (280, 6428474), (364, 4944980), (455, 3955984), (520, 3461486), (560, 3214237), (728, 2472490), (910, 1977992), (1040, 1730743), (1456, 1236245), (1820, 988996), (3640, 494498), (7280, 247249)]