1278082240

素因数分解:

$2^6\times 5^1\times {\mathrm{3994007}}^1$

素因数の和:3994024

約数の個数: 28

約数和(自身を含む): 3043434096

約数和(自身を除く): 1765351856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 3994007, 7988014, 15976028, 19970035, 31952056, 39940070, 63904112, 79880140, 127808224, 159760280, 255616448, 319520560, 639041120, 1278082240]

約数ペア:

[(1, 1278082240), (2, 639041120), (4, 319520560), (5, 255616448), (8, 159760280), (10, 127808224), (16, 79880140), (20, 63904112), (32, 39940070), (40, 31952056), (64, 19970035), (80, 15976028), (160, 7988014), (320, 3994007)]