2557060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 5987520

約数和(自身を除く): 3430460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 197, 220, 236, 295, 394, 590, 649, 788, 985, 1180, 1298, 1970, 2167, 2596, 3245, 3940, 4334, 6490, 8668, 10835, 11623, 12980, 21670, 23246, 43340, 46492, 58115, 116230, 127853, 232460, 255706, 511412, 639265, 1278530, 2557060]

約数ペア:

[(1, 2557060), (2, 1278530), (4, 639265), (5, 511412), (10, 255706), (11, 232460), (20, 127853), (22, 116230), (44, 58115), (55, 46492), (59, 43340), (110, 23246), (118, 21670), (197, 12980), (220, 11623), (236, 10835), (295, 8668), (394, 6490), (590, 4334), (649, 3940), (788, 3245), (985, 2596), (1180, 2167), (1298, 1970)]