1689428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 3249288

約数和(自身を除く): 1559860

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 613, 689, 1226, 1378, 2452, 2756, 7969, 15938, 31876, 32489, 64978, 129956, 422357, 844714, 1689428]

約数ペア:

[(1, 1689428), (2, 844714), (4, 422357), (13, 129956), (26, 64978), (52, 32489), (53, 31876), (106, 15938), (212, 7969), (613, 2756), (689, 2452), (1226, 1378)]