20408734192

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{974443}}^1$

素因数の和:974486

約数の個数: 80

約数和(自身を含む): 52199016192

約数和(自身を除く): 31790282000

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 238, 272, 308, 374, 476, 616, 748, 952, 1232, 1309, 1496, 1904, 2618, 2992, 5236, 10472, 20944, 974443, 1948886, 3897772, 6821101, 7795544, 10718873, 13642202, 15591088, 16565531, 21437746, 27284404, 33131062, 42875492, 54568808, 66262124, 75032111, 85750984, 109137616, 115958717, 132524248, 150064222, 171501968, 182220841, 231917434, 265048496, 300128444, 364441682, 463834868, 600256888, 728883364, 927669736, 1200513776, 1275545887, 1457766728, 1855339472, 2551091774, 2915533456, 5102183548, 10204367096, 20408734192]

約数ペア:

[(1, 20408734192), (2, 10204367096), (4, 5102183548), (7, 2915533456), (8, 2551091774), (11, 1855339472), (14, 1457766728), (16, 1275545887), (17, 1200513776), (22, 927669736), (28, 728883364), (34, 600256888), (44, 463834868), (56, 364441682), (68, 300128444), (77, 265048496), (88, 231917434), (112, 182220841), (119, 171501968), (136, 150064222), (154, 132524248), (176, 115958717), (187, 109137616), (238, 85750984), (272, 75032111), (308, 66262124), (374, 54568808), (476, 42875492), (616, 33131062), (748, 27284404), (952, 21437746), (1232, 16565531), (1309, 15591088), (1496, 13642202), (1904, 10718873), (2618, 7795544), (2992, 6821101), (5236, 3897772), (10472, 1948886), (20944, 974443)]