1639779918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{640039}}^1$

素因数の和:640112

約数の個数: 32

約数和(自身を含む): 3809518080

約数和(自身を除く): 2169738162

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 640039, 1280078, 1920117, 3840234, 4480273, 8960546, 13440819, 26881638, 39042379, 78084758, 117127137, 234254274, 273296653, 546593306, 819889959, 1639779918]

約数ペア:

[(1, 1639779918), (2, 819889959), (3, 546593306), (6, 273296653), (7, 234254274), (14, 117127137), (21, 78084758), (42, 39042379), (61, 26881638), (122, 13440819), (183, 8960546), (366, 4480273), (427, 3840234), (854, 1920117), (1281, 1280078), (2562, 640039)]