7788557680

素因数分解:

$2^4\times 5^1\times {\mathrm{97356971}}^1$

素因数の和:97356984

約数の個数: 20

約数和(自身を含む): 18108396792

約数和(自身を除く): 10319839112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97356971, 194713942, 389427884, 486784855, 778855768, 973569710, 1557711536, 1947139420, 3894278840, 7788557680]

約数ペア:

[(1, 7788557680), (2, 3894278840), (4, 1947139420), (5, 1557711536), (8, 973569710), (10, 778855768), (16, 486784855), (20, 389427884), (40, 194713942), (80, 97356971)]