121381988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{347}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 270922176

約数和(自身を除く): 149540188

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 347, 364, 403, 434, 694, 806, 868, 961, 1388, 1612, 1922, 2429, 2821, 3844, 4511, 4858, 5642, 6727, 9022, 9716, 10757, 11284, 12493, 13454, 18044, 21514, 24986, 26908, 31577, 43028, 49972, 63154, 75299, 87451, 126308, 139841, 150598, 174902, 279682, 301196, 333467, 349804, 559364, 666934, 978887, 1333868, 1957774, 2334269, 3915548, 4335071, 4668538, 8670142, 9337076, 17340284, 30345497, 60690994, 121381988]

約数ペア:

[(1, 121381988), (2, 60690994), (4, 30345497), (7, 17340284), (13, 9337076), (14, 8670142), (26, 4668538), (28, 4335071), (31, 3915548), (52, 2334269), (62, 1957774), (91, 1333868), (124, 978887), (182, 666934), (217, 559364), (347, 349804), (364, 333467), (403, 301196), (434, 279682), (694, 174902), (806, 150598), (868, 139841), (961, 126308), (1388, 87451), (1612, 75299), (1922, 63154), (2429, 49972), (2821, 43028), (3844, 31577), (4511, 26908), (4858, 24986), (5642, 21514), (6727, 18044), (9022, 13454), (9716, 12493), (10757, 11284)]