407220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 1245888

約数和(自身を除く): 838668

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 617, 660, 1234, 1851, 2468, 3085, 3702, 6170, 6787, 7404, 9255, 12340, 13574, 18510, 20361, 27148, 33935, 37020, 40722, 67870, 81444, 101805, 135740, 203610, 407220]

約数ペア:

[(1, 407220), (2, 203610), (3, 135740), (4, 101805), (5, 81444), (6, 67870), (10, 40722), (11, 37020), (12, 33935), (15, 27148), (20, 20361), (22, 18510), (30, 13574), (33, 12340), (44, 9255), (55, 7404), (60, 6787), (66, 6170), (110, 3702), (132, 3085), (165, 2468), (220, 1851), (330, 1234), (617, 660)]