81686356

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{757}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 146127240

約数和(自身を除く): 64440884

約数列:

[1, 2, 4, 53, 106, 212, 509, 757, 1018, 1514, 2036, 3028, 26977, 40121, 53954, 80242, 107908, 160484, 385313, 770626, 1541252, 20421589, 40843178, 81686356]

約数ペア:

[(1, 81686356), (2, 40843178), (4, 20421589), (53, 1541252), (106, 770626), (212, 385313), (509, 160484), (757, 107908), (1018, 80242), (1514, 53954), (2036, 40121), (3028, 26977)]