31915288

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 64876680

約数和(自身を除く): 32961392

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 257, 344, 361, 514, 722, 817, 1028, 1444, 1634, 2056, 2888, 3268, 4883, 6536, 9766, 11051, 15523, 19532, 22102, 31046, 39064, 44204, 62092, 88408, 92777, 124184, 185554, 209969, 371108, 419938, 742216, 839876, 1679752, 3989411, 7978822, 15957644, 31915288]

約数ペア:

[(1, 31915288), (2, 15957644), (4, 7978822), (8, 3989411), (19, 1679752), (38, 839876), (43, 742216), (76, 419938), (86, 371108), (152, 209969), (172, 185554), (257, 124184), (344, 92777), (361, 88408), (514, 62092), (722, 44204), (817, 39064), (1028, 31046), (1444, 22102), (1634, 19532), (2056, 15523), (2888, 11051), (3268, 9766), (4883, 6536)]