18784966278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{17681}}^1$

素因数の和:18009

約数の個数: 64

約数和(自身を含む): 41386064832

約数和(自身を除く): 22601098554

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 257, 318, 514, 689, 771, 1378, 1542, 2067, 3341, 4134, 6682, 10023, 13621, 17681, 20046, 27242, 35362, 40863, 53043, 81726, 106086, 177073, 229853, 354146, 459706, 531219, 689559, 937093, 1062438, 1379118, 1874186, 2811279, 4544017, 5622558, 9088034, 12182209, 13632051, 24364418, 27264102, 36546627, 59072221, 73093254, 118144442, 177216663, 240832901, 354433326, 481665802, 722498703, 1444997406, 3130827713, 6261655426, 9392483139, 18784966278]

約数ペア:

[(1, 18784966278), (2, 9392483139), (3, 6261655426), (6, 3130827713), (13, 1444997406), (26, 722498703), (39, 481665802), (53, 354433326), (78, 240832901), (106, 177216663), (159, 118144442), (257, 73093254), (318, 59072221), (514, 36546627), (689, 27264102), (771, 24364418), (1378, 13632051), (1542, 12182209), (2067, 9088034), (3341, 5622558), (4134, 4544017), (6682, 2811279), (10023, 1874186), (13621, 1379118), (17681, 1062438), (20046, 937093), (27242, 689559), (35362, 531219), (40863, 459706), (53043, 354146), (81726, 229853), (106086, 177073)]