13459840

素因数分解:

$2^7\times 5^1\times {\mathrm{21031}}^1$

素因数の和:21050

約数の個数: 32

約数和(自身を含む): 32178960

約数和(自身を除く): 18719120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 21031, 42062, 84124, 105155, 168248, 210310, 336496, 420620, 672992, 841240, 1345984, 1682480, 2691968, 3364960, 6729920, 13459840]

約数ペア:

[(1, 13459840), (2, 6729920), (4, 3364960), (5, 2691968), (8, 1682480), (10, 1345984), (16, 841240), (20, 672992), (32, 420620), (40, 336496), (64, 210310), (80, 168248), (128, 105155), (160, 84124), (320, 42062), (640, 21031)]