19381880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69221}}^1$

素因数の和:69239

約数の個数: 32

約数和(自身を含む): 49839840

約数和(自身を除く): 30457960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69221, 138442, 276884, 346105, 484547, 553768, 692210, 969094, 1384420, 1938188, 2422735, 2768840, 3876376, 4845470, 9690940, 19381880]

約数ペア:

[(1, 19381880), (2, 9690940), (4, 4845470), (5, 3876376), (7, 2768840), (8, 2422735), (10, 1938188), (14, 1384420), (20, 969094), (28, 692210), (35, 553768), (40, 484547), (56, 346105), (70, 276884), (140, 138442), (280, 69221)]