865630168

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{640259}}^1$

素因数の和:640291

約数の個数: 24

約数和(自身を含む): 1757513700

約数和(自身を除く): 891883532

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 640259, 1280518, 2561036, 5122072, 8323367, 16646734, 33293468, 66586936, 108203771, 216407542, 432815084, 865630168]

約数ペア:

[(1, 865630168), (2, 432815084), (4, 216407542), (8, 108203771), (13, 66586936), (26, 33293468), (52, 16646734), (104, 8323367), (169, 5122072), (338, 2561036), (676, 1280518), (1352, 640259)]