81845768

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1279}}^1$

素因数の和:1725

約数の個数: 32

約数和(自身を含む): 162048000

約数和(自身を除く): 80202232

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 421, 842, 1279, 1684, 2558, 3368, 5116, 7999, 10232, 15998, 24301, 31996, 48602, 63992, 97204, 194408, 538459, 1076918, 2153836, 4307672, 10230721, 20461442, 40922884, 81845768]

約数ペア:

[(1, 81845768), (2, 40922884), (4, 20461442), (8, 10230721), (19, 4307672), (38, 2153836), (76, 1076918), (152, 538459), (421, 194408), (842, 97204), (1279, 63992), (1684, 48602), (2558, 31996), (3368, 24301), (5116, 15998), (7999, 10232)]