81540090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5237}}^1$

素因数の和:5423

約数の個数: 48

約数和(自身を含む): 213270408

約数和(自身を除く): 131730318

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 173, 346, 519, 865, 1038, 1557, 1730, 2595, 3114, 5190, 5237, 7785, 10474, 15570, 15711, 26185, 31422, 47133, 52370, 78555, 94266, 157110, 235665, 471330, 906001, 1812002, 2718003, 4530005, 5436006, 8154009, 9060010, 13590015, 16308018, 27180030, 40770045, 81540090]

約数ペア:

[(1, 81540090), (2, 40770045), (3, 27180030), (5, 16308018), (6, 13590015), (9, 9060010), (10, 8154009), (15, 5436006), (18, 4530005), (30, 2718003), (45, 1812002), (90, 906001), (173, 471330), (346, 235665), (519, 157110), (865, 94266), (1038, 78555), (1557, 52370), (1730, 47133), (2595, 31422), (3114, 26185), (5190, 15711), (5237, 15570), (7785, 10474)]