7788019840

素因数分解:

$2^7\times 5^1\times {\mathrm{12168781}}^1$

素因数の和:12168800

約数の個数: 32

約数和(自身を含む): 18618236460

約数和(自身を除く): 10830216620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 12168781, 24337562, 48675124, 60843905, 97350248, 121687810, 194700496, 243375620, 389400992, 486751240, 778801984, 973502480, 1557603968, 1947004960, 3894009920, 7788019840]

約数ペア:

[(1, 7788019840), (2, 3894009920), (4, 1947004960), (5, 1557603968), (8, 973502480), (10, 778801984), (16, 486751240), (20, 389400992), (32, 243375620), (40, 194700496), (64, 121687810), (80, 97350248), (128, 60843905), (160, 48675124), (320, 24337562), (640, 12168781)]