78642064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{258691}}^1$

素因数の和:258718

約数の個数: 20

約数和(自身を含む): 160389040

約数和(自身を除く): 81746976

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 258691, 517382, 1034764, 2069528, 4139056, 4915129, 9830258, 19660516, 39321032, 78642064]

約数ペア:

[(1, 78642064), (2, 39321032), (4, 19660516), (8, 9830258), (16, 4915129), (19, 4139056), (38, 2069528), (76, 1034764), (152, 517382), (304, 258691)]