128253040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84377}}^1$

素因数の和:84409

約数の個数: 40

約数和(自身を含む): 313886160

約数和(自身を除く): 185633120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84377, 168754, 337508, 421885, 675016, 843770, 1350032, 1603163, 1687540, 3206326, 3375080, 6412652, 6750160, 8015815, 12825304, 16031630, 25650608, 32063260, 64126520, 128253040]

約数ペア:

[(1, 128253040), (2, 64126520), (4, 32063260), (5, 25650608), (8, 16031630), (10, 12825304), (16, 8015815), (19, 6750160), (20, 6412652), (38, 3375080), (40, 3206326), (76, 1687540), (80, 1603163), (95, 1350032), (152, 843770), (190, 675016), (304, 421885), (380, 337508), (760, 168754), (1520, 84377)]