2018454220

素因数分解:

$2^2\times 5^1\times {\mathrm{2539}}^1\times {\mathrm{39749}}^1$

素因数の和:42297

約数の個数: 24

約数和(自身を含む): 4240530000

約数和(自身を除く): 2222075780

約数列:

[1, 2, 4, 5, 10, 20, 2539, 5078, 10156, 12695, 25390, 39749, 50780, 79498, 158996, 198745, 397490, 794980, 100922711, 201845422, 403690844, 504613555, 1009227110, 2018454220]

約数ペア:

[(1, 2018454220), (2, 1009227110), (4, 504613555), (5, 403690844), (10, 201845422), (20, 100922711), (2539, 794980), (5078, 397490), (10156, 198745), (12695, 158996), (25390, 79498), (39749, 50780)]