398439728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1310657}}^1$

素因数の和:1310684

約数の個数: 20

約数和(自身を含む): 812607960

約数和(自身を除く): 414168232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1310657, 2621314, 5242628, 10485256, 20970512, 24902483, 49804966, 99609932, 199219864, 398439728]

約数ペア:

[(1, 398439728), (2, 199219864), (4, 99609932), (8, 49804966), (16, 24902483), (19, 20970512), (38, 10485256), (76, 5242628), (152, 2621314), (304, 1310657)]