77906980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 171642240

約数和(自身を除く): 93735260

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 257, 460, 514, 659, 1028, 1285, 1318, 2570, 2636, 3295, 5140, 5911, 6590, 11822, 13180, 15157, 23644, 29555, 30314, 59110, 60628, 75785, 118220, 151570, 169363, 303140, 338726, 677452, 846815, 1693630, 3387260, 3895349, 7790698, 15581396, 19476745, 38953490, 77906980]

約数ペア:

[(1, 77906980), (2, 38953490), (4, 19476745), (5, 15581396), (10, 7790698), (20, 3895349), (23, 3387260), (46, 1693630), (92, 846815), (115, 677452), (230, 338726), (257, 303140), (460, 169363), (514, 151570), (659, 118220), (1028, 75785), (1285, 60628), (1318, 59110), (2570, 30314), (2636, 29555), (3295, 23644), (5140, 15157), (5911, 13180), (6590, 11822)]