78036722020

素因数分解:

$2^2\times 5^1\times {\mathrm{2789}}^1\times {\mathrm{1399009}}^1$

素因数の和:1401807

約数の個数: 24

約数和(自身を含む): 163935991800

約数和(自身を除く): 85899269780

約数列:

[1, 2, 4, 5, 10, 20, 2789, 5578, 11156, 13945, 27890, 55780, 1399009, 2798018, 5596036, 6995045, 13990090, 27980180, 3901836101, 7803672202, 15607344404, 19509180505, 39018361010, 78036722020]

約数ペア:

[(1, 78036722020), (2, 39018361010), (4, 19509180505), (5, 15607344404), (10, 7803672202), (20, 3901836101), (2789, 27980180), (5578, 13990090), (11156, 6995045), (13945, 5596036), (27890, 2798018), (55780, 1399009)]