861408

素因数分解:

$2^5\times 3^3\times {\mathrm{997}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 2514960

約数和(自身を除く): 1653552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864, 997, 1994, 2991, 3988, 5982, 7976, 8973, 11964, 15952, 17946, 23928, 26919, 31904, 35892, 47856, 53838, 71784, 95712, 107676, 143568, 215352, 287136, 430704, 861408]

約数ペア:

[(1, 861408), (2, 430704), (3, 287136), (4, 215352), (6, 143568), (8, 107676), (9, 95712), (12, 71784), (16, 53838), (18, 47856), (24, 35892), (27, 31904), (32, 26919), (36, 23928), (48, 17946), (54, 15952), (72, 11964), (96, 8973), (108, 7976), (144, 5982), (216, 3988), (288, 2991), (432, 1994), (864, 997)]