1389520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1579}}^1$

素因数の和:1603

約数の個数: 40

約数和(自身を含む): 3526560

約数和(自身を除く): 2137040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1579, 3158, 6316, 7895, 12632, 15790, 17369, 25264, 31580, 34738, 63160, 69476, 86845, 126320, 138952, 173690, 277904, 347380, 694760, 1389520]

約数ペア:

[(1, 1389520), (2, 694760), (4, 347380), (5, 277904), (8, 173690), (10, 138952), (11, 126320), (16, 86845), (20, 69476), (22, 63160), (40, 34738), (44, 31580), (55, 25264), (80, 17369), (88, 15790), (110, 12632), (176, 7895), (220, 6316), (440, 3158), (880, 1579)]