779281278640

素因数分解:

$2^4\times 5^1\times {\mathrm{9741015983}}^1$

素因数の和:9741015996

約数の個数: 20

約数和(自身を含む): 1811828973024

約数和(自身を除く): 1032547694384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9741015983, 19482031966, 38964063932, 48705079915, 77928127864, 97410159830, 155856255728, 194820319660, 389640639320, 779281278640]

約数ペア:

[(1, 779281278640), (2, 389640639320), (4, 194820319660), (5, 155856255728), (8, 97410159830), (10, 77928127864), (16, 48705079915), (20, 38964063932), (40, 19482031966), (80, 9741015983)]