664696798

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1\times {\mathrm{401}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 1062341280

約数和(自身を除く): 397644482

約数列:

[1, 2, 19, 38, 181, 241, 362, 401, 482, 802, 3439, 4579, 6878, 7619, 9158, 15238, 43621, 72581, 87242, 96641, 145162, 193282, 828799, 1379039, 1657598, 1836179, 2758078, 3672358, 17492021, 34984042, 332348399, 664696798]

約数ペア:

[(1, 664696798), (2, 332348399), (19, 34984042), (38, 17492021), (181, 3672358), (241, 2758078), (362, 1836179), (401, 1657598), (482, 1379039), (802, 828799), (3439, 193282), (4579, 145162), (6878, 96641), (7619, 87242), (9158, 72581), (15238, 43621)]