123456040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181553}}^1$

素因数の和:181581

約数の個数: 32

約数和(自身を含む): 294117480

約数和(自身を除く): 170661440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 181553, 363106, 726212, 907765, 1452424, 1815530, 3086401, 3631060, 6172802, 7262120, 12345604, 15432005, 24691208, 30864010, 61728020, 123456040]

約数ペア:

[(1, 123456040), (2, 61728020), (4, 30864010), (5, 24691208), (8, 15432005), (10, 12345604), (17, 7262120), (20, 6172802), (34, 3631060), (40, 3086401), (68, 1815530), (85, 1452424), (136, 907765), (170, 726212), (340, 363106), (680, 181553)]