1291206256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{4247389}}^1$

素因数の和:4247416

約数の個数: 20

約数和(自身を含む): 2633381800

約数和(自身を除く): 1342175544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 4247389, 8494778, 16989556, 33979112, 67958224, 80700391, 161400782, 322801564, 645603128, 1291206256]

約数ペア:

[(1, 1291206256), (2, 645603128), (4, 322801564), (8, 161400782), (16, 80700391), (19, 67958224), (38, 33979112), (76, 16989556), (152, 8494778), (304, 4247389)]