87532780

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{11251}}^1$

素因数の和:11649

約数の個数: 24

約数和(自身を含む): 184307760

約数和(自身を除く): 96774980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 11251, 22502, 45004, 56255, 112510, 225020, 4376639, 8753278, 17506556, 21883195, 43766390, 87532780]

約数ペア:

[(1, 87532780), (2, 43766390), (4, 21883195), (5, 17506556), (10, 8753278), (20, 4376639), (389, 225020), (778, 112510), (1556, 56255), (1945, 45004), (3890, 22502), (7780, 11251)]