8888920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3643}}^1$

素因数の和:3715

約数の個数: 32

約数和(自身を含む): 20333520

約数和(自身を除く): 11444600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3643, 7286, 14572, 18215, 29144, 36430, 72860, 145720, 222223, 444446, 888892, 1111115, 1777784, 2222230, 4444460, 8888920]

約数ペア:

[(1, 8888920), (2, 4444460), (4, 2222230), (5, 1777784), (8, 1111115), (10, 888892), (20, 444446), (40, 222223), (61, 145720), (122, 72860), (244, 36430), (305, 29144), (488, 18215), (610, 14572), (1220, 7286), (2440, 3643)]