81694450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 159007680

約数和(自身を除く): 77313230

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 103, 145, 206, 290, 515, 547, 725, 1030, 1094, 1450, 2575, 2735, 2987, 5150, 5470, 5974, 13675, 14935, 15863, 27350, 29870, 31726, 56341, 74675, 79315, 112682, 149350, 158630, 281705, 396575, 563410, 793150, 1408525, 1633889, 2817050, 3267778, 8169445, 16338890, 40847225, 81694450]

約数ペア:

[(1, 81694450), (2, 40847225), (5, 16338890), (10, 8169445), (25, 3267778), (29, 2817050), (50, 1633889), (58, 1408525), (103, 793150), (145, 563410), (206, 396575), (290, 281705), (515, 158630), (547, 149350), (725, 112682), (1030, 79315), (1094, 74675), (1450, 56341), (2575, 31726), (2735, 29870), (2987, 27350), (5150, 15863), (5470, 14935), (5974, 13675)]