3857260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 8981280

約数和(自身を除く): 5124020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 197, 220, 356, 394, 445, 788, 890, 979, 985, 1780, 1958, 1970, 2167, 3916, 3940, 4334, 4895, 8668, 9790, 10835, 17533, 19580, 21670, 35066, 43340, 70132, 87665, 175330, 192863, 350660, 385726, 771452, 964315, 1928630, 3857260]

約数ペア:

[(1, 3857260), (2, 1928630), (4, 964315), (5, 771452), (10, 385726), (11, 350660), (20, 192863), (22, 175330), (44, 87665), (55, 70132), (89, 43340), (110, 35066), (178, 21670), (197, 19580), (220, 17533), (356, 10835), (394, 9790), (445, 8668), (788, 4895), (890, 4334), (979, 3940), (985, 3916), (1780, 2167), (1958, 1970)]