20178698896

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3904547}}^1$

素因数の和:3904591

約数の個数: 40

約数和(自身を含む): 43574755680

約数和(自身を除く): 23396056784

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 3904547, 7809094, 15618188, 31236376, 62472752, 66377299, 74186393, 132754598, 148372786, 265509196, 296745572, 531018392, 593491144, 1062036784, 1186982288, 1261168681, 2522337362, 5044674724, 10089349448, 20178698896]

約数ペア:

[(1, 20178698896), (2, 10089349448), (4, 5044674724), (8, 2522337362), (16, 1261168681), (17, 1186982288), (19, 1062036784), (34, 593491144), (38, 531018392), (68, 296745572), (76, 265509196), (136, 148372786), (152, 132754598), (272, 74186393), (304, 66377299), (323, 62472752), (646, 31236376), (1292, 15618188), (2584, 7809094), (5168, 3904547)]