20391056

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:892

約数の個数: 60

約数和(自身を含む): 47496960

約数和(自身を除く): 27105904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 196, 217, 248, 392, 434, 496, 784, 839, 868, 1519, 1678, 1736, 3038, 3356, 3472, 5873, 6076, 6712, 11746, 12152, 13424, 23492, 24304, 26009, 41111, 46984, 52018, 82222, 93968, 104036, 164444, 182063, 208072, 328888, 364126, 416144, 657776, 728252, 1274441, 1456504, 2548882, 2913008, 5097764, 10195528, 20391056]

約数ペア:

[(1, 20391056), (2, 10195528), (4, 5097764), (7, 2913008), (8, 2548882), (14, 1456504), (16, 1274441), (28, 728252), (31, 657776), (49, 416144), (56, 364126), (62, 328888), (98, 208072), (112, 182063), (124, 164444), (196, 104036), (217, 93968), (248, 82222), (392, 52018), (434, 46984), (496, 41111), (784, 26009), (839, 24304), (868, 23492), (1519, 13424), (1678, 12152), (1736, 11746), (3038, 6712), (3356, 6076), (3472, 5873)]