1380457880

素因数分解:

$2^3\times 5^1\times {\mathrm{34511447}}^1$

素因数の和:34511458

約数の個数: 16

約数和(自身を含む): 3106030320

約数和(自身を除く): 1725572440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 34511447, 69022894, 138045788, 172557235, 276091576, 345114470, 690228940, 1380457880]

約数ペア:

[(1, 1380457880), (2, 690228940), (4, 345114470), (5, 276091576), (8, 172557235), (10, 138045788), (20, 69022894), (40, 34511447)]