81289334

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 150822000

約数和(自身を除く): 69532666

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 149, 266, 293, 298, 586, 931, 1043, 1862, 2051, 2086, 2831, 4102, 5567, 5662, 7301, 11134, 14357, 14602, 19817, 28714, 38969, 39634, 43657, 77938, 87314, 138719, 272783, 277438, 305599, 545566, 611198, 829483, 1658966, 2139193, 4278386, 5806381, 11612762, 40644667, 81289334]

約数ペア:

[(1, 81289334), (2, 40644667), (7, 11612762), (14, 5806381), (19, 4278386), (38, 2139193), (49, 1658966), (98, 829483), (133, 611198), (149, 545566), (266, 305599), (293, 277438), (298, 272783), (586, 138719), (931, 87314), (1043, 77938), (1862, 43657), (2051, 39634), (2086, 38969), (2831, 28714), (4102, 19817), (5567, 14602), (5662, 14357), (7301, 11134)]