1213289408

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{19727}}^1$

素因数の和:19801

約数の個数: 42

約数和(自身を含む): 2487917808

約数和(自身を除く): 1274628400

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 961, 992, 1922, 1984, 3844, 7688, 15376, 19727, 30752, 39454, 61504, 78908, 157816, 315632, 611537, 631264, 1223074, 1262528, 2446148, 4892296, 9784592, 18957647, 19569184, 37915294, 39138368, 75830588, 151661176, 303322352, 606644704, 1213289408]

約数ペア:

[(1, 1213289408), (2, 606644704), (4, 303322352), (8, 151661176), (16, 75830588), (31, 39138368), (32, 37915294), (62, 19569184), (64, 18957647), (124, 9784592), (248, 4892296), (496, 2446148), (961, 1262528), (992, 1223074), (1922, 631264), (1984, 611537), (3844, 315632), (7688, 157816), (15376, 78908), (19727, 61504), (30752, 39454)]