257963342

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10657}}^1$

素因数の和:10705

約数の個数: 48

約数和(自身を含む): 510305040

約数和(自身を除く): 252341698

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 931, 1274, 1729, 1862, 3458, 10657, 12103, 21314, 24206, 74599, 138541, 149198, 202483, 277082, 404966, 522193, 969787, 1044386, 1417381, 1939574, 2632279, 2834762, 5264558, 6788509, 9921667, 13577018, 18425953, 19843334, 36851906, 128981671, 257963342]

約数ペア:

[(1, 257963342), (2, 128981671), (7, 36851906), (13, 19843334), (14, 18425953), (19, 13577018), (26, 9921667), (38, 6788509), (49, 5264558), (91, 2834762), (98, 2632279), (133, 1939574), (182, 1417381), (247, 1044386), (266, 969787), (494, 522193), (637, 404966), (931, 277082), (1274, 202483), (1729, 149198), (1862, 138541), (3458, 74599), (10657, 24206), (12103, 21314)]