87648640

素因数分解:

$2^7\times 5^1\times {\mathrm{136951}}^1$

素因数の和:136970

約数の個数: 32

約数和(自身を含む): 209536560

約数和(自身を除く): 121887920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 136951, 273902, 547804, 684755, 1095608, 1369510, 2191216, 2739020, 4382432, 5478040, 8764864, 10956080, 17529728, 21912160, 43824320, 87648640]

約数ペア:

[(1, 87648640), (2, 43824320), (4, 21912160), (5, 17529728), (8, 10956080), (10, 8764864), (16, 5478040), (20, 4382432), (32, 2739020), (40, 2191216), (64, 1369510), (80, 1095608), (128, 684755), (160, 547804), (320, 273902), (640, 136951)]