204844420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3623}}^1$

素因数の和:3900

約数の個数: 48

約数和(自身を含む): 471235968

約数和(自身を除く): 266391548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 2570, 2827, 3623, 5140, 5654, 7246, 11308, 14135, 14492, 18115, 28270, 36230, 39853, 56540, 72460, 79706, 159412, 199265, 398530, 797060, 931111, 1862222, 3724444, 4655555, 9311110, 10242221, 18622220, 20484442, 40968884, 51211105, 102422210, 204844420]

約数ペア:

[(1, 204844420), (2, 102422210), (4, 51211105), (5, 40968884), (10, 20484442), (11, 18622220), (20, 10242221), (22, 9311110), (44, 4655555), (55, 3724444), (110, 1862222), (220, 931111), (257, 797060), (514, 398530), (1028, 199265), (1285, 159412), (2570, 79706), (2827, 72460), (3623, 56540), (5140, 39853), (5654, 36230), (7246, 28270), (11308, 18115), (14135, 14492)]