12989860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1063}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 30030336

約数和(自身を除く): 17040476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1063, 1222, 2126, 2444, 3055, 4252, 5315, 6110, 10630, 12220, 13819, 21260, 27638, 49961, 55276, 69095, 99922, 138190, 199844, 249805, 276380, 499610, 649493, 999220, 1298986, 2597972, 3247465, 6494930, 12989860]

約数ペア:

[(1, 12989860), (2, 6494930), (4, 3247465), (5, 2597972), (10, 1298986), (13, 999220), (20, 649493), (26, 499610), (47, 276380), (52, 249805), (65, 199844), (94, 138190), (130, 99922), (188, 69095), (235, 55276), (260, 49961), (470, 27638), (611, 21260), (940, 13819), (1063, 12220), (1222, 10630), (2126, 6110), (2444, 5315), (3055, 4252)]