31699460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121921}}^1$

素因数の和:121943

約数の個数: 24

約数和(自身を含む): 71690136

約数和(自身を除く): 39990676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121921, 243842, 487684, 609605, 1219210, 1584973, 2438420, 3169946, 6339892, 7924865, 15849730, 31699460]

約数ペア:

[(1, 31699460), (2, 15849730), (4, 7924865), (5, 6339892), (10, 3169946), (13, 2438420), (20, 1584973), (26, 1219210), (52, 609605), (65, 487684), (130, 243842), (260, 121921)]