51330320

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3257}}^1$

素因数の和:3467

約数の個数: 40

約数和(自身を含む): 119985624

約数和(自身を除く): 68655304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3257, 3940, 6514, 7880, 13028, 15760, 16285, 26056, 32570, 52112, 65140, 130280, 260560, 641629, 1283258, 2566516, 3208145, 5133032, 6416290, 10266064, 12832580, 25665160, 51330320]

約数ペア:

[(1, 51330320), (2, 25665160), (4, 12832580), (5, 10266064), (8, 6416290), (10, 5133032), (16, 3208145), (20, 2566516), (40, 1283258), (80, 641629), (197, 260560), (394, 130280), (788, 65140), (985, 52112), (1576, 32570), (1970, 26056), (3152, 16285), (3257, 15760), (3940, 13028), (6514, 7880)]