258788894

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2861}}^1$

素因数の和:2961

約数の個数: 48

約数和(自身を含む): 493317216

約数和(自身を除く): 234528322

約数列:

[1, 2, 7, 13, 14, 26, 49, 71, 91, 98, 142, 182, 497, 637, 923, 994, 1274, 1846, 2861, 3479, 5722, 6461, 6958, 12922, 20027, 37193, 40054, 45227, 74386, 90454, 140189, 203131, 260351, 280378, 406262, 520702, 1421917, 1822457, 2640703, 2843834, 3644914, 5281406, 9953419, 18484921, 19906838, 36969842, 129394447, 258788894]

約数ペア:

[(1, 258788894), (2, 129394447), (7, 36969842), (13, 19906838), (14, 18484921), (26, 9953419), (49, 5281406), (71, 3644914), (91, 2843834), (98, 2640703), (142, 1822457), (182, 1421917), (497, 520702), (637, 406262), (923, 280378), (994, 260351), (1274, 203131), (1846, 140189), (2861, 90454), (3479, 74386), (5722, 45227), (6461, 40054), (6958, 37193), (12922, 20027)]