90638660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2389}}^1$

素因数の和:2676

約数の個数: 48

約数和(自身を含む): 218426880

約数和(自身を除く): 127788220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 542, 1084, 1355, 1897, 2389, 2710, 3794, 4778, 5420, 7588, 9485, 9556, 11945, 16723, 18970, 23890, 33446, 37940, 47780, 66892, 83615, 167230, 334460, 647419, 1294838, 2589676, 3237095, 4531933, 6474190, 9063866, 12948380, 18127732, 22659665, 45319330, 90638660]

約数ペア:

[(1, 90638660), (2, 45319330), (4, 22659665), (5, 18127732), (7, 12948380), (10, 9063866), (14, 6474190), (20, 4531933), (28, 3237095), (35, 2589676), (70, 1294838), (140, 647419), (271, 334460), (542, 167230), (1084, 83615), (1355, 66892), (1897, 47780), (2389, 37940), (2710, 33446), (3794, 23890), (4778, 18970), (5420, 16723), (7588, 11945), (9485, 9556)]