251998812

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1279}}^1$

素因数の和:1723

約数の個数: 72

約数和(自身を含む): 688163840

約数和(自身を除く): 436165028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 421, 468, 842, 1263, 1279, 1684, 2526, 2558, 3789, 3837, 5052, 5116, 5473, 7578, 7674, 10946, 11511, 15156, 15348, 16419, 16627, 21892, 23022, 32838, 33254, 46044, 49257, 49881, 65676, 66508, 98514, 99762, 149643, 197028, 199524, 299286, 538459, 598572, 1076918, 1615377, 2153836, 3230754, 4846131, 6461508, 6999967, 9692262, 13999934, 19384524, 20999901, 27999868, 41999802, 62999703, 83999604, 125999406, 251998812]

約数ペア:

[(1, 251998812), (2, 125999406), (3, 83999604), (4, 62999703), (6, 41999802), (9, 27999868), (12, 20999901), (13, 19384524), (18, 13999934), (26, 9692262), (36, 6999967), (39, 6461508), (52, 4846131), (78, 3230754), (117, 2153836), (156, 1615377), (234, 1076918), (421, 598572), (468, 538459), (842, 299286), (1263, 199524), (1279, 197028), (1684, 149643), (2526, 99762), (2558, 98514), (3789, 66508), (3837, 65676), (5052, 49881), (5116, 49257), (5473, 46044), (7578, 33254), (7674, 32838), (10946, 23022), (11511, 21892), (15156, 16627), (15348, 16419)]