20565246590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{688031}}^1$

素因数の和:688113

約数の個数: 48

約数和(自身を含む): 43767091584

約数和(自身を除く): 23201844994

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 29890, 688031, 1376062, 3440155, 4816217, 6880310, 9632434, 24081085, 33713519, 41969891, 48162170, 67427038, 83939782, 168567595, 209849455, 293789237, 337135190, 419698910, 587578474, 1468946185, 2056524659, 2937892370, 4113049318, 10282623295, 20565246590]

約数ペア:

[(1, 20565246590), (2, 10282623295), (5, 4113049318), (7, 2937892370), (10, 2056524659), (14, 1468946185), (35, 587578474), (49, 419698910), (61, 337135190), (70, 293789237), (98, 209849455), (122, 168567595), (245, 83939782), (305, 67427038), (427, 48162170), (490, 41969891), (610, 33713519), (854, 24081085), (2135, 9632434), (2989, 6880310), (4270, 4816217), (5978, 3440155), (14945, 1376062), (29890, 688031)]