81204490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{3967}}^1$

素因数の和:4086

約数の個数: 32

約数和(自身を含む): 154275840

約数和(自身を除く): 73071350

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 2047, 3967, 4094, 7934, 10235, 19835, 20470, 39670, 91241, 182482, 353063, 456205, 706126, 912410, 1765315, 3530630, 8120449, 16240898, 40602245, 81204490]

約数ペア:

[(1, 81204490), (2, 40602245), (5, 16240898), (10, 8120449), (23, 3530630), (46, 1765315), (89, 912410), (115, 706126), (178, 456205), (230, 353063), (445, 182482), (890, 91241), (2047, 39670), (3967, 20470), (4094, 19835), (7934, 10235)]