128274412

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{123817}}^1$

素因数の和:123865

約数の個数: 24

約数和(自身を含む): 263484704

約数和(自身を除く): 135210292

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 123817, 247634, 495268, 866719, 1733438, 3466876, 4581229, 9162458, 18324916, 32068603, 64137206, 128274412]

約数ペア:

[(1, 128274412), (2, 64137206), (4, 32068603), (7, 18324916), (14, 9162458), (28, 4581229), (37, 3466876), (74, 1733438), (148, 866719), (259, 495268), (518, 247634), (1036, 123817)]