1287380

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1091}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 2751840

約数和(自身を除く): 1464460

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1091, 1180, 2182, 4364, 5455, 10910, 21820, 64369, 128738, 257476, 321845, 643690, 1287380]

約数ペア:

[(1, 1287380), (2, 643690), (4, 321845), (5, 257476), (10, 128738), (20, 64369), (59, 21820), (118, 10910), (236, 5455), (295, 4364), (590, 2182), (1091, 1180)]