385865720

素因数分解:

$2^3\times 5^1\times {\mathrm{9646643}}^1$

素因数の和:9646654

約数の個数: 16

約数和(自身を含む): 868197960

約数和(自身を除く): 482332240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9646643, 19293286, 38586572, 48233215, 77173144, 96466430, 192932860, 385865720]

約数ペア:

[(1, 385865720), (2, 192932860), (4, 96466430), (5, 77173144), (8, 48233215), (10, 38586572), (20, 19293286), (40, 9646643)]