19381340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2381}}^1$

素因数の和:2438

約数の個数: 48

約数和(自身を含む): 45620064

約数和(自身を除く): 26238724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2381, 4070, 4762, 8140, 9524, 11905, 23810, 26191, 47620, 52382, 88097, 104764, 130955, 176194, 261910, 352388, 440485, 523820, 880970, 969067, 1761940, 1938134, 3876268, 4845335, 9690670, 19381340]

約数ペア:

[(1, 19381340), (2, 9690670), (4, 4845335), (5, 3876268), (10, 1938134), (11, 1761940), (20, 969067), (22, 880970), (37, 523820), (44, 440485), (55, 352388), (74, 261910), (110, 176194), (148, 130955), (185, 104764), (220, 88097), (370, 52382), (407, 47620), (740, 26191), (814, 23810), (1628, 11905), (2035, 9524), (2381, 8140), (4070, 4762)]