18972860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{25639}}^1$

素因数の和:25685

約数の個数: 24

約数和(自身を含む): 40921440

約数和(自身を除く): 21948580

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 25639, 51278, 102556, 128195, 256390, 512780, 948643, 1897286, 3794572, 4743215, 9486430, 18972860]

約数ペア:

[(1, 18972860), (2, 9486430), (4, 4743215), (5, 3794572), (10, 1897286), (20, 948643), (37, 512780), (74, 256390), (148, 128195), (185, 102556), (370, 51278), (740, 25639)]