20126320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13241}}^1$

素因数の和:13273

約数の個数: 40

約数和(自身を含む): 49260240

約数和(自身を除く): 29133920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13241, 26482, 52964, 66205, 105928, 132410, 211856, 251579, 264820, 503158, 529640, 1006316, 1059280, 1257895, 2012632, 2515790, 4025264, 5031580, 10063160, 20126320]

約数ペア:

[(1, 20126320), (2, 10063160), (4, 5031580), (5, 4025264), (8, 2515790), (10, 2012632), (16, 1257895), (19, 1059280), (20, 1006316), (38, 529640), (40, 503158), (76, 264820), (80, 251579), (95, 211856), (152, 132410), (190, 105928), (304, 66205), (380, 52964), (760, 26482), (1520, 13241)]