20779984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{317}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 42941448

約数和(自身を除く): 22161464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 241, 272, 317, 482, 634, 964, 1268, 1928, 2536, 3856, 4097, 5072, 5389, 8194, 10778, 16388, 21556, 32776, 43112, 65552, 76397, 86224, 152794, 305588, 611176, 1222352, 1298749, 2597498, 5194996, 10389992, 20779984]

約数ペア:

[(1, 20779984), (2, 10389992), (4, 5194996), (8, 2597498), (16, 1298749), (17, 1222352), (34, 611176), (68, 305588), (136, 152794), (241, 86224), (272, 76397), (317, 65552), (482, 43112), (634, 32776), (964, 21556), (1268, 16388), (1928, 10778), (2536, 8194), (3856, 5389), (4097, 5072)]