987305440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{560969}}^1$

素因数の和:560995

約数の個数: 48

約数和(自身を含む): 2544559920

約数和(自身を除く): 1557254480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 560969, 1121938, 2243876, 2804845, 4487752, 5609690, 6170659, 8975504, 11219380, 12341318, 17951008, 22438760, 24682636, 30853295, 44877520, 49365272, 61706590, 89755040, 98730544, 123413180, 197461088, 246826360, 493652720, 987305440]

約数ペア:

[(1, 987305440), (2, 493652720), (4, 246826360), (5, 197461088), (8, 123413180), (10, 98730544), (11, 89755040), (16, 61706590), (20, 49365272), (22, 44877520), (32, 30853295), (40, 24682636), (44, 22438760), (55, 17951008), (80, 12341318), (88, 11219380), (110, 8975504), (160, 6170659), (176, 5609690), (220, 4487752), (352, 2804845), (440, 2243876), (880, 1121938), (1760, 560969)]