12880340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 29804544

約数和(自身を除く): 16924204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 461, 508, 635, 922, 1270, 1397, 1844, 2305, 2540, 2794, 4610, 5071, 5588, 6985, 9220, 10142, 13970, 20284, 25355, 27940, 50710, 58547, 101420, 117094, 234188, 292735, 585470, 644017, 1170940, 1288034, 2576068, 3220085, 6440170, 12880340]

約数ペア:

[(1, 12880340), (2, 6440170), (4, 3220085), (5, 2576068), (10, 1288034), (11, 1170940), (20, 644017), (22, 585470), (44, 292735), (55, 234188), (110, 117094), (127, 101420), (220, 58547), (254, 50710), (461, 27940), (508, 25355), (635, 20284), (922, 13970), (1270, 10142), (1397, 9220), (1844, 6985), (2305, 5588), (2540, 5071), (2794, 4610)]