81307984

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1039}}^1$

素因数の和:1187

約数の個数: 40

約数和(自身を含む): 162231680

約数和(自身を除く): 80923696

約数列:

[1, 2, 4, 8, 16, 67, 73, 134, 146, 268, 292, 536, 584, 1039, 1072, 1168, 2078, 4156, 4891, 8312, 9782, 16624, 19564, 39128, 69613, 75847, 78256, 139226, 151694, 278452, 303388, 556904, 606776, 1113808, 1213552, 5081749, 10163498, 20326996, 40653992, 81307984]

約数ペア:

[(1, 81307984), (2, 40653992), (4, 20326996), (8, 10163498), (16, 5081749), (67, 1213552), (73, 1113808), (134, 606776), (146, 556904), (268, 303388), (292, 278452), (536, 151694), (584, 139226), (1039, 78256), (1072, 75847), (1168, 69613), (2078, 39128), (4156, 19564), (4891, 16624), (8312, 9782)]