678403220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{75211}}^1$

素因数の和:75272

約数の個数: 48

約数和(自身を含む): 1592087616

約数和(自身を除く): 913684396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 75211, 150422, 300844, 376055, 752110, 827321, 1504220, 1654642, 3083651, 3309284, 4136605, 6167302, 8273210, 12334604, 15418255, 16546420, 30836510, 33920161, 61673020, 67840322, 135680644, 169600805, 339201610, 678403220]

約数ペア:

[(1, 678403220), (2, 339201610), (4, 169600805), (5, 135680644), (10, 67840322), (11, 61673020), (20, 33920161), (22, 30836510), (41, 16546420), (44, 15418255), (55, 12334604), (82, 8273210), (110, 6167302), (164, 4136605), (205, 3309284), (220, 3083651), (410, 1654642), (451, 1504220), (820, 827321), (902, 752110), (1804, 376055), (2255, 300844), (4510, 150422), (9020, 75211)]