78454780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{38839}}^1$

素因数の和:38949

約数の個数: 24

約数和(自身を含む): 166390560

約数和(自身を除く): 87935780

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 38839, 77678, 155356, 194195, 388390, 776780, 3922739, 7845478, 15690956, 19613695, 39227390, 78454780]

約数ペア:

[(1, 78454780), (2, 39227390), (4, 19613695), (5, 15690956), (10, 7845478), (20, 3922739), (101, 776780), (202, 388390), (404, 194195), (505, 155356), (1010, 77678), (2020, 38839)]