71489020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1051}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 159062400

約数和(自身を除く): 87573380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 716, 895, 1051, 1790, 2102, 3401, 3580, 4204, 5255, 6802, 10510, 13604, 17005, 19969, 21020, 34010, 39938, 68020, 79876, 99845, 188129, 199690, 376258, 399380, 752516, 940645, 1881290, 3574451, 3762580, 7148902, 14297804, 17872255, 35744510, 71489020]

約数ペア:

[(1, 71489020), (2, 35744510), (4, 17872255), (5, 14297804), (10, 7148902), (19, 3762580), (20, 3574451), (38, 1881290), (76, 940645), (95, 752516), (179, 399380), (190, 376258), (358, 199690), (380, 188129), (716, 99845), (895, 79876), (1051, 68020), (1790, 39938), (2102, 34010), (3401, 21020), (3580, 19969), (4204, 17005), (5255, 13604), (6802, 10510)]