20941240

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2741}}^1$

素因数の和:2943

約数の個数: 32

約数和(自身を含む): 47381760

約数和(自身を除く): 26440520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2741, 3820, 5482, 7640, 10964, 13705, 21928, 27410, 54820, 109640, 523531, 1047062, 2094124, 2617655, 4188248, 5235310, 10470620, 20941240]

約数ペア:

[(1, 20941240), (2, 10470620), (4, 5235310), (5, 4188248), (8, 2617655), (10, 2094124), (20, 1047062), (40, 523531), (191, 109640), (382, 54820), (764, 27410), (955, 21928), (1528, 13705), (1910, 10964), (2741, 7640), (3820, 5482)]