398131490

素因数分解:

$2^1\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{30839}}^1$

素因数の和:32137

約数の個数: 16

約数和(自身を含む): 717215040

約数和(自身を除く): 319083550

約数列:

[1, 2, 5, 10, 1291, 2582, 6455, 12910, 30839, 61678, 154195, 308390, 39813149, 79626298, 199065745, 398131490]

約数ペア:

[(1, 398131490), (2, 199065745), (5, 79626298), (10, 39813149), (1291, 308390), (2582, 154195), (6455, 61678), (12910, 30839)]