28485808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{136951}}^1$

素因数の和:136972

約数の個数: 20

約数和(自身を含む): 59437168

約数和(自身を除く): 30951360

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 136951, 273902, 547804, 1095608, 1780363, 2191216, 3560726, 7121452, 14242904, 28485808]

約数ペア:

[(1, 28485808), (2, 14242904), (4, 7121452), (8, 3560726), (13, 2191216), (16, 1780363), (26, 1095608), (52, 547804), (104, 273902), (208, 136951)]