78020080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51329}}^1$

素因数の和:51361

約数の個数: 40

約数和(自身を含む): 190947600

約数和(自身を除く): 112927520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51329, 102658, 205316, 256645, 410632, 513290, 821264, 975251, 1026580, 1950502, 2053160, 3901004, 4106320, 4876255, 7802008, 9752510, 15604016, 19505020, 39010040, 78020080]

約数ペア:

[(1, 78020080), (2, 39010040), (4, 19505020), (5, 15604016), (8, 9752510), (10, 7802008), (16, 4876255), (19, 4106320), (20, 3901004), (38, 2053160), (40, 1950502), (76, 1026580), (80, 975251), (95, 821264), (152, 513290), (190, 410632), (304, 256645), (380, 205316), (760, 102658), (1520, 51329)]