20178091472

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{91499}}^1$

素因数の和:91704

約数の個数: 80

約数和(自身を含む): 49014720000

約数和(自身を除く): 28836628528

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 179, 308, 358, 616, 716, 1232, 1253, 1432, 1969, 2506, 2864, 3938, 5012, 7876, 10024, 13783, 15752, 20048, 27566, 31504, 55132, 91499, 110264, 182998, 220528, 365996, 640493, 731992, 1006489, 1280986, 1463984, 2012978, 2561972, 4025956, 5123944, 7045423, 8051912, 10247888, 14090846, 16103824, 16378321, 28181692, 32756642, 56363384, 65513284, 112726768, 114648247, 131026568, 180161531, 229296494, 262053136, 360323062, 458592988, 720646124, 917185976, 1261130717, 1441292248, 1834371952, 2522261434, 2882584496, 5044522868, 10089045736, 20178091472]

約数ペア:

[(1, 20178091472), (2, 10089045736), (4, 5044522868), (7, 2882584496), (8, 2522261434), (11, 1834371952), (14, 1441292248), (16, 1261130717), (22, 917185976), (28, 720646124), (44, 458592988), (56, 360323062), (77, 262053136), (88, 229296494), (112, 180161531), (154, 131026568), (176, 114648247), (179, 112726768), (308, 65513284), (358, 56363384), (616, 32756642), (716, 28181692), (1232, 16378321), (1253, 16103824), (1432, 14090846), (1969, 10247888), (2506, 8051912), (2864, 7045423), (3938, 5123944), (5012, 4025956), (7876, 2561972), (10024, 2012978), (13783, 1463984), (15752, 1280986), (20048, 1006489), (27566, 731992), (31504, 640493), (55132, 365996), (91499, 220528), (110264, 182998)]