20784347568

素因数分解:

$2^4\times 3^2\times {\mathrm{563}}^1\times {\mathrm{256369}}^1$

素因数の和:256946

約数の個数: 60

約数和(自身を含む): 58270850040

約数和(自身を除く): 37486502472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 563, 1126, 1689, 2252, 3378, 4504, 5067, 6756, 9008, 10134, 13512, 20268, 27024, 40536, 81072, 256369, 512738, 769107, 1025476, 1538214, 2050952, 2307321, 3076428, 4101904, 4614642, 6152856, 9229284, 12305712, 18458568, 36917136, 144335747, 288671494, 433007241, 577342988, 866014482, 1154685976, 1299021723, 1732028964, 2309371952, 2598043446, 3464057928, 5196086892, 6928115856, 10392173784, 20784347568]

約数ペア:

[(1, 20784347568), (2, 10392173784), (3, 6928115856), (4, 5196086892), (6, 3464057928), (8, 2598043446), (9, 2309371952), (12, 1732028964), (16, 1299021723), (18, 1154685976), (24, 866014482), (36, 577342988), (48, 433007241), (72, 288671494), (144, 144335747), (563, 36917136), (1126, 18458568), (1689, 12305712), (2252, 9229284), (3378, 6152856), (4504, 4614642), (5067, 4101904), (6756, 3076428), (9008, 2307321), (10134, 2050952), (13512, 1538214), (20268, 1025476), (27024, 769107), (40536, 512738), (81072, 256369)]