2181660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2797}}^1$

素因数の和:2822

約数の個数: 48

約数和(自身を含む): 6580896

約数和(自身を除く): 4399236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2797, 5594, 8391, 11188, 13985, 16782, 27970, 33564, 36361, 41955, 55940, 72722, 83910, 109083, 145444, 167820, 181805, 218166, 363610, 436332, 545415, 727220, 1090830, 2181660]

約数ペア:

[(1, 2181660), (2, 1090830), (3, 727220), (4, 545415), (5, 436332), (6, 363610), (10, 218166), (12, 181805), (13, 167820), (15, 145444), (20, 109083), (26, 83910), (30, 72722), (39, 55940), (52, 41955), (60, 36361), (65, 33564), (78, 27970), (130, 16782), (156, 13985), (195, 11188), (260, 8391), (390, 5594), (780, 2797)]