12688780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1319}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 29494080

約数和(自身を除く): 16805300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1319, 1924, 2405, 2638, 4810, 5276, 6595, 9620, 13190, 17147, 26380, 34294, 48803, 68588, 85735, 97606, 171470, 195212, 244015, 342940, 488030, 634439, 976060, 1268878, 2537756, 3172195, 6344390, 12688780]

約数ペア:

[(1, 12688780), (2, 6344390), (4, 3172195), (5, 2537756), (10, 1268878), (13, 976060), (20, 634439), (26, 488030), (37, 342940), (52, 244015), (65, 195212), (74, 171470), (130, 97606), (148, 85735), (185, 68588), (260, 48803), (370, 34294), (481, 26380), (740, 17147), (962, 13190), (1319, 9620), (1924, 6595), (2405, 5276), (2638, 4810)]