15956780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{389}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 22568980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 293, 389, 586, 778, 1172, 1465, 1556, 1945, 2051, 2723, 2930, 3890, 4102, 5446, 5860, 7780, 8204, 10255, 10892, 13615, 20510, 27230, 41020, 54460, 113977, 227954, 455908, 569885, 797839, 1139770, 1595678, 2279540, 3191356, 3989195, 7978390, 15956780]

約数ペア:

[(1, 15956780), (2, 7978390), (4, 3989195), (5, 3191356), (7, 2279540), (10, 1595678), (14, 1139770), (20, 797839), (28, 569885), (35, 455908), (70, 227954), (140, 113977), (293, 54460), (389, 41020), (586, 27230), (778, 20510), (1172, 13615), (1465, 10892), (1556, 10255), (1945, 8204), (2051, 7780), (2723, 5860), (2930, 5446), (3890, 4102)]