28765640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31267}}^1$

素因数の和:31301

約数の個数: 32

約数和(自身を含む): 67538880

約数和(自身を除く): 38773240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 31267, 62534, 125068, 156335, 250136, 312670, 625340, 719141, 1250680, 1438282, 2876564, 3595705, 5753128, 7191410, 14382820, 28765640]

約数ペア:

[(1, 28765640), (2, 14382820), (4, 7191410), (5, 5753128), (8, 3595705), (10, 2876564), (20, 1438282), (23, 1250680), (40, 719141), (46, 625340), (92, 312670), (115, 250136), (184, 156335), (230, 125068), (460, 62534), (920, 31267)]