12987280

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2423}}^1$

素因数の和:2503

約数の個数: 40

約数和(自身を含む): 30658752

約数和(自身を除く): 17671472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2423, 2680, 4846, 5360, 9692, 12115, 19384, 24230, 38768, 48460, 96920, 162341, 193840, 324682, 649364, 811705, 1298728, 1623410, 2597456, 3246820, 6493640, 12987280]

約数ペア:

[(1, 12987280), (2, 6493640), (4, 3246820), (5, 2597456), (8, 1623410), (10, 1298728), (16, 811705), (20, 649364), (40, 324682), (67, 193840), (80, 162341), (134, 96920), (268, 48460), (335, 38768), (536, 24230), (670, 19384), (1072, 12115), (1340, 9692), (2423, 5360), (2680, 4846)]