78302240

素因数分解:

$2^5\times 5^1\times {\mathrm{489389}}^1$

素因数の和:489404

約数の個数: 24

約数和(自身を含む): 184989420

約数和(自身を除く): 106687180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 489389, 978778, 1957556, 2446945, 3915112, 4893890, 7830224, 9787780, 15660448, 19575560, 39151120, 78302240]

約数ペア:

[(1, 78302240), (2, 39151120), (4, 19575560), (5, 15660448), (8, 9787780), (10, 7830224), (16, 4893890), (20, 3915112), (32, 2446945), (40, 1957556), (80, 978778), (160, 489389)]