133173872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{640259}}^1$

素因数の和:640280

約数の個数: 20

約数和(自身を含む): 277872840

約数和(自身を除く): 144698968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 640259, 1280518, 2561036, 5122072, 8323367, 10244144, 16646734, 33293468, 66586936, 133173872]

約数ペア:

[(1, 133173872), (2, 66586936), (4, 33293468), (8, 16646734), (13, 10244144), (16, 8323367), (26, 5122072), (52, 2561036), (104, 1280518), (208, 640259)]