391854488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{4481}}^1$

素因数の和:5147

約数の個数: 32

約数和(自身を含む): 779330160

約数和(自身を除く): 387475672

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 643, 1286, 2572, 4481, 5144, 8962, 10931, 17924, 21862, 35848, 43724, 76177, 87448, 152354, 304708, 609416, 2881283, 5762566, 11525132, 23050264, 48981811, 97963622, 195927244, 391854488]

約数ペア:

[(1, 391854488), (2, 195927244), (4, 97963622), (8, 48981811), (17, 23050264), (34, 11525132), (68, 5762566), (136, 2881283), (643, 609416), (1286, 304708), (2572, 152354), (4481, 87448), (5144, 76177), (8962, 43724), (10931, 35848), (17924, 21862)]