3997168

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 8972640

約数和(自身を除く): 4975472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 401, 623, 712, 802, 1246, 1424, 1604, 2492, 2807, 3208, 4984, 5614, 6416, 9968, 11228, 22456, 35689, 44912, 71378, 142756, 249823, 285512, 499646, 571024, 999292, 1998584, 3997168]

約数ペア:

[(1, 3997168), (2, 1998584), (4, 999292), (7, 571024), (8, 499646), (14, 285512), (16, 249823), (28, 142756), (56, 71378), (89, 44912), (112, 35689), (178, 22456), (356, 11228), (401, 9968), (623, 6416), (712, 5614), (802, 4984), (1246, 3208), (1424, 2807), (1604, 2492)]