81245330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{3923}}^1$

素因数の和:4058

約数の個数: 32

約数和(自身を含む): 155390400

約数和(自身を除く): 74145070

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 2071, 3923, 4142, 7846, 10355, 19615, 20710, 39230, 74537, 149074, 372685, 427607, 745370, 855214, 2138035, 4276070, 8124533, 16249066, 40622665, 81245330]

約数ペア:

[(1, 81245330), (2, 40622665), (5, 16249066), (10, 8124533), (19, 4276070), (38, 2138035), (95, 855214), (109, 745370), (190, 427607), (218, 372685), (545, 149074), (1090, 74537), (2071, 39230), (3923, 20710), (4142, 19615), (7846, 10355)]