387512680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{182789}}^1$

素因数の和:182853

約数の個数: 32

約数和(自身を含む): 888359400

約数和(自身を除く): 500846720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 182789, 365578, 731156, 913945, 1462312, 1827890, 3655780, 7311560, 9687817, 19375634, 38751268, 48439085, 77502536, 96878170, 193756340, 387512680]

約数ペア:

[(1, 387512680), (2, 193756340), (4, 96878170), (5, 77502536), (8, 48439085), (10, 38751268), (20, 19375634), (40, 9687817), (53, 7311560), (106, 3655780), (212, 1827890), (265, 1462312), (424, 913945), (530, 731156), (1060, 365578), (2120, 182789)]