179688880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2043

約数の個数: 120

約数和(自身を含む): 507369312

約数和(自身を除く): 327680432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 920, 980, 1127, 1288, 1610, 1840, 1960, 1993, 2254, 2576, 3220, 3920, 3986, 4508, 5635, 6440, 7972, 9016, 9965, 11270, 12880, 13951, 15944, 18032, 19930, 22540, 27902, 31888, 39860, 45080, 45839, 55804, 69755, 79720, 90160, 91678, 97657, 111608, 139510, 159440, 183356, 195314, 223216, 229195, 279020, 320873, 366712, 390628, 458390, 488285, 558040, 641746, 733424, 781256, 916780, 976570, 1116080, 1283492, 1562512, 1604365, 1833560, 1953140, 2246111, 2566984, 3208730, 3667120, 3906280, 4492222, 5133968, 6417460, 7812560, 8984444, 11230555, 12834920, 17968888, 22461110, 25669840, 35937776, 44922220, 89844440, 179688880]

約数ペア:

[(1, 179688880), (2, 89844440), (4, 44922220), (5, 35937776), (7, 25669840), (8, 22461110), (10, 17968888), (14, 12834920), (16, 11230555), (20, 8984444), (23, 7812560), (28, 6417460), (35, 5133968), (40, 4492222), (46, 3906280), (49, 3667120), (56, 3208730), (70, 2566984), (80, 2246111), (92, 1953140), (98, 1833560), (112, 1604365), (115, 1562512), (140, 1283492), (161, 1116080), (184, 976570), (196, 916780), (230, 781256), (245, 733424), (280, 641746), (322, 558040), (368, 488285), (392, 458390), (460, 390628), (490, 366712), (560, 320873), (644, 279020), (784, 229195), (805, 223216), (920, 195314), (980, 183356), (1127, 159440), (1288, 139510), (1610, 111608), (1840, 97657), (1960, 91678), (1993, 90160), (2254, 79720), (2576, 69755), (3220, 55804), (3920, 45839), (3986, 45080), (4508, 39860), (5635, 31888), (6440, 27902), (7972, 22540), (9016, 19930), (9965, 18032), (11270, 15944), (12880, 13951)]