20305390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2711}}^1$

素因数の和:2832

約数の個数: 32

約数和(自身を含む): 42177024

約数和(自身を除く): 21871634

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 107, 214, 535, 749, 1070, 1498, 2711, 3745, 5422, 7490, 13555, 18977, 27110, 37954, 94885, 189770, 290077, 580154, 1450385, 2030539, 2900770, 4061078, 10152695, 20305390]

約数ペア:

[(1, 20305390), (2, 10152695), (5, 4061078), (7, 2900770), (10, 2030539), (14, 1450385), (35, 580154), (70, 290077), (107, 189770), (214, 94885), (535, 37954), (749, 27110), (1070, 18977), (1498, 13555), (2711, 7490), (3745, 5422)]