13222640

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1049

約数の個数: 40

約数和(自身を含む): 30935520

約数和(自身を除く): 17712880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 839, 985, 1576, 1678, 1970, 3152, 3356, 3940, 4195, 6712, 7880, 8390, 13424, 15760, 16780, 33560, 67120, 165283, 330566, 661132, 826415, 1322264, 1652830, 2644528, 3305660, 6611320, 13222640]

約数ペア:

[(1, 13222640), (2, 6611320), (4, 3305660), (5, 2644528), (8, 1652830), (10, 1322264), (16, 826415), (20, 661132), (40, 330566), (80, 165283), (197, 67120), (394, 33560), (788, 16780), (839, 15760), (985, 13424), (1576, 8390), (1678, 7880), (1970, 6712), (3152, 4195), (3356, 3940)]