20506486360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16537489}}^1$

素因数の和:16537531

約数の個数: 32

約数和(自身を含む): 47627971200

約数和(自身を除く): 27121484840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16537489, 33074978, 66149956, 82687445, 132299912, 165374890, 330749780, 512662159, 661499560, 1025324318, 2050648636, 2563310795, 4101297272, 5126621590, 10253243180, 20506486360]

約数ペア:

[(1, 20506486360), (2, 10253243180), (4, 5126621590), (5, 4101297272), (8, 2563310795), (10, 2050648636), (20, 1025324318), (31, 661499560), (40, 512662159), (62, 330749780), (124, 165374890), (155, 132299912), (248, 82687445), (310, 66149956), (620, 33074978), (1240, 16537489)]