666928

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:652

約数の個数: 20

約数和(自身を含む): 1312168

約数和(自身を除く): 645240

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 571, 584, 1142, 1168, 2284, 4568, 9136, 41683, 83366, 166732, 333464, 666928]

約数ペア:

[(1, 666928), (2, 333464), (4, 166732), (8, 83366), (16, 41683), (73, 9136), (146, 4568), (292, 2284), (571, 1168), (584, 1142)]