56863120

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6521}}^1$

素因数の和:6643

約数の個数: 40

約数和(自身を含む): 133440120

約数和(自身を除く): 76577000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 6521, 8720, 13042, 26084, 32605, 52168, 65210, 104336, 130420, 260840, 521680, 710789, 1421578, 2843156, 3553945, 5686312, 7107890, 11372624, 14215780, 28431560, 56863120]

約数ペア:

[(1, 56863120), (2, 28431560), (4, 14215780), (5, 11372624), (8, 7107890), (10, 5686312), (16, 3553945), (20, 2843156), (40, 1421578), (80, 710789), (109, 521680), (218, 260840), (436, 130420), (545, 104336), (872, 65210), (1090, 52168), (1744, 32605), (2180, 26084), (4360, 13042), (6521, 8720)]