400976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1346

約数の個数: 20

約数和(自身を含む): 818400

約数和(自身を除く): 417424

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1319, 2638, 5276, 10552, 21104, 25061, 50122, 100244, 200488, 400976]

約数ペア:

[(1, 400976), (2, 200488), (4, 100244), (8, 50122), (16, 25061), (19, 21104), (38, 10552), (76, 5276), (152, 2638), (304, 1319)]