402000280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{913637}}^1$

素因数の和:913659

約数の個数: 32

約数和(自身を含む): 986729040

約数和(自身を除く): 584728760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 913637, 1827274, 3654548, 4568185, 7309096, 9136370, 10050007, 18272740, 20100014, 36545480, 40200028, 50250035, 80400056, 100500070, 201000140, 402000280]

約数ペア:

[(1, 402000280), (2, 201000140), (4, 100500070), (5, 80400056), (8, 50250035), (10, 40200028), (11, 36545480), (20, 20100014), (22, 18272740), (40, 10050007), (44, 9136370), (55, 7309096), (88, 4568185), (110, 3654548), (220, 1827274), (440, 913637)]