646056

素因数分解:

$2^3\times 3^4\times {\mathrm{997}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 1811370

約数和(自身を除く): 1165314

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 997, 1994, 2991, 3988, 5982, 7976, 8973, 11964, 17946, 23928, 26919, 35892, 53838, 71784, 80757, 107676, 161514, 215352, 323028, 646056]

約数ペア:

[(1, 646056), (2, 323028), (3, 215352), (4, 161514), (6, 107676), (8, 80757), (9, 71784), (12, 53838), (18, 35892), (24, 26919), (27, 23928), (36, 17946), (54, 11964), (72, 8973), (81, 7976), (108, 5982), (162, 3988), (216, 2991), (324, 1994), (648, 997)]