77889470

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{20023}}^1$

素因数の和:20419

約数の個数: 16

約数和(自身を含む): 140568480

約数和(自身を除く): 62679010

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 20023, 40046, 100115, 200230, 7788947, 15577894, 38944735, 77889470]

約数ペア:

[(1, 77889470), (2, 38944735), (5, 15577894), (10, 7788947), (389, 200230), (778, 100115), (1945, 40046), (3890, 20023)]