256905156

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:961

約数の個数: 96

約数和(自身を含む): 677376000

約数和(自身を除く): 420470844

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 68, 76, 79, 102, 114, 158, 204, 228, 237, 316, 323, 474, 646, 839, 948, 969, 1292, 1343, 1501, 1678, 1938, 2517, 2686, 3002, 3356, 3876, 4029, 4503, 5034, 5372, 6004, 8058, 9006, 10068, 14263, 15941, 16116, 18012, 25517, 28526, 31882, 42789, 47823, 51034, 57052, 63764, 66281, 76551, 85578, 95646, 102068, 132562, 153102, 171156, 191292, 198843, 265124, 270997, 306204, 397686, 541994, 795372, 812991, 1083988, 1126777, 1259339, 1625982, 2253554, 2518678, 3251964, 3380331, 3778017, 4507108, 5037356, 6760662, 7556034, 13521324, 15112068, 21408763, 42817526, 64226289, 85635052, 128452578, 256905156]

約数ペア:

[(1, 256905156), (2, 128452578), (3, 85635052), (4, 64226289), (6, 42817526), (12, 21408763), (17, 15112068), (19, 13521324), (34, 7556034), (38, 6760662), (51, 5037356), (57, 4507108), (68, 3778017), (76, 3380331), (79, 3251964), (102, 2518678), (114, 2253554), (158, 1625982), (204, 1259339), (228, 1126777), (237, 1083988), (316, 812991), (323, 795372), (474, 541994), (646, 397686), (839, 306204), (948, 270997), (969, 265124), (1292, 198843), (1343, 191292), (1501, 171156), (1678, 153102), (1938, 132562), (2517, 102068), (2686, 95646), (3002, 85578), (3356, 76551), (3876, 66281), (4029, 63764), (4503, 57052), (5034, 51034), (5372, 47823), (6004, 42789), (8058, 31882), (9006, 28526), (10068, 25517), (14263, 18012), (15941, 16116)]