80542240

素因数分解:

$2^5\times 5^1\times {\mathrm{503389}}^1$

素因数の和:503404

約数の個数: 24

約数和(自身を含む): 190281420

約数和(自身を除く): 109739180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 503389, 1006778, 2013556, 2516945, 4027112, 5033890, 8054224, 10067780, 16108448, 20135560, 40271120, 80542240]

約数ペア:

[(1, 80542240), (2, 40271120), (4, 20135560), (5, 16108448), (8, 10067780), (10, 8054224), (16, 5033890), (20, 4027112), (32, 2516945), (40, 2013556), (80, 1006778), (160, 503389)]