20091470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 42525648

約数和(自身を除く): 22434178

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 131, 245, 262, 313, 490, 626, 655, 917, 1310, 1565, 1834, 2191, 3130, 4382, 4585, 6419, 9170, 10955, 12838, 15337, 21910, 30674, 32095, 41003, 64190, 76685, 82006, 153370, 205015, 287021, 410030, 574042, 1435105, 2009147, 2870210, 4018294, 10045735, 20091470]

約数ペア:

[(1, 20091470), (2, 10045735), (5, 4018294), (7, 2870210), (10, 2009147), (14, 1435105), (35, 574042), (49, 410030), (70, 287021), (98, 205015), (131, 153370), (245, 82006), (262, 76685), (313, 64190), (490, 41003), (626, 32095), (655, 30674), (917, 21910), (1310, 15337), (1565, 12838), (1834, 10955), (2191, 9170), (3130, 6419), (4382, 4585)]