12519220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 30256128

約数和(自身を除く): 17736908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 401, 446, 802, 892, 1115, 1561, 1604, 2005, 2230, 2807, 3122, 4010, 4460, 5614, 6244, 7805, 8020, 11228, 14035, 15610, 28070, 31220, 56140, 89423, 178846, 357692, 447115, 625961, 894230, 1251922, 1788460, 2503844, 3129805, 6259610, 12519220]

約数ペア:

[(1, 12519220), (2, 6259610), (4, 3129805), (5, 2503844), (7, 1788460), (10, 1251922), (14, 894230), (20, 625961), (28, 447115), (35, 357692), (70, 178846), (140, 89423), (223, 56140), (401, 31220), (446, 28070), (802, 15610), (892, 14035), (1115, 11228), (1561, 8020), (1604, 7805), (2005, 6244), (2230, 5614), (2807, 4460), (3122, 4010)]