7788759640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2742521}}^1$

素因数の和:2742603

約数の個数: 32

約数和(自身を含む): 17771542560

約数和(自身を除く): 9982782920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 2742521, 5485042, 10970084, 13712605, 21940168, 27425210, 54850420, 109700840, 194718991, 389437982, 778875964, 973594955, 1557751928, 1947189910, 3894379820, 7788759640]

約数ペア:

[(1, 7788759640), (2, 3894379820), (4, 1947189910), (5, 1557751928), (8, 973594955), (10, 778875964), (20, 389437982), (40, 194718991), (71, 109700840), (142, 54850420), (284, 27425210), (355, 21940168), (568, 13712605), (710, 10970084), (1420, 5485042), (2840, 2742521)]