20856430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4447}}^1$

素因数の和:4528

約数の個数: 32

約数和(自身を含む): 43554816

約数和(自身を除く): 22698386

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4447, 4690, 8894, 22235, 31129, 44470, 62258, 155645, 297949, 311290, 595898, 1489745, 2085643, 2979490, 4171286, 10428215, 20856430]

約数ペア:

[(1, 20856430), (2, 10428215), (5, 4171286), (7, 2979490), (10, 2085643), (14, 1489745), (35, 595898), (67, 311290), (70, 297949), (134, 155645), (335, 62258), (469, 44470), (670, 31129), (938, 22235), (2345, 8894), (4447, 4690)]