66625540

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{5197}}^1$

素因数の和:5847

約数の個数: 24

約数和(自身を含む): 140158872

約数和(自身を除く): 73533332

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 5197, 6410, 10394, 12820, 20788, 25985, 51970, 103940, 3331277, 6662554, 13325108, 16656385, 33312770, 66625540]

約数ペア:

[(1, 66625540), (2, 33312770), (4, 16656385), (5, 13325108), (10, 6662554), (20, 3331277), (641, 103940), (1282, 51970), (2564, 25985), (3205, 20788), (5197, 12820), (6410, 10394)]