156728420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 337478400

約数和(自身を除く): 180749980

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 199, 212, 265, 398, 530, 743, 796, 995, 1060, 1486, 1990, 2972, 3715, 3980, 7430, 10547, 14860, 21094, 39379, 42188, 52735, 78758, 105470, 147857, 157516, 196895, 210940, 295714, 393790, 591428, 739285, 787580, 1478570, 2957140, 7836421, 15672842, 31345684, 39182105, 78364210, 156728420]

約数ペア:

[(1, 156728420), (2, 78364210), (4, 39182105), (5, 31345684), (10, 15672842), (20, 7836421), (53, 2957140), (106, 1478570), (199, 787580), (212, 739285), (265, 591428), (398, 393790), (530, 295714), (743, 210940), (796, 196895), (995, 157516), (1060, 147857), (1486, 105470), (1990, 78758), (2972, 52735), (3715, 42188), (3980, 39379), (7430, 21094), (10547, 14860)]