1399420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6361}}^1$

素因数の和:6381

約数の個数: 24

約数和(自身を含む): 3206448

約数和(自身を除く): 1807028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 6361, 12722, 25444, 31805, 63610, 69971, 127220, 139942, 279884, 349855, 699710, 1399420]

約数ペア:

[(1, 1399420), (2, 699710), (4, 349855), (5, 279884), (10, 139942), (11, 127220), (20, 69971), (22, 63610), (44, 31805), (55, 25444), (110, 12722), (220, 6361)]