256476456

素因数分解:

$2^3\times 3^4\times {\mathrm{157}}^1\times {\mathrm{2521}}^1$

素因数の和:2696

約数の個数: 80

約数和(自身を含む): 723233940

約数和(自身を除く): 466757484

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 157, 162, 216, 314, 324, 471, 628, 648, 942, 1256, 1413, 1884, 2521, 2826, 3768, 4239, 5042, 5652, 7563, 8478, 10084, 11304, 12717, 15126, 16956, 20168, 22689, 25434, 30252, 33912, 45378, 50868, 60504, 68067, 90756, 101736, 136134, 181512, 204201, 272268, 395797, 408402, 544536, 791594, 816804, 1187391, 1583188, 1633608, 2374782, 3166376, 3562173, 4749564, 7124346, 9499128, 10686519, 14248692, 21373038, 28497384, 32059557, 42746076, 64119114, 85492152, 128238228, 256476456]

約数ペア:

[(1, 256476456), (2, 128238228), (3, 85492152), (4, 64119114), (6, 42746076), (8, 32059557), (9, 28497384), (12, 21373038), (18, 14248692), (24, 10686519), (27, 9499128), (36, 7124346), (54, 4749564), (72, 3562173), (81, 3166376), (108, 2374782), (157, 1633608), (162, 1583188), (216, 1187391), (314, 816804), (324, 791594), (471, 544536), (628, 408402), (648, 395797), (942, 272268), (1256, 204201), (1413, 181512), (1884, 136134), (2521, 101736), (2826, 90756), (3768, 68067), (4239, 60504), (5042, 50868), (5652, 45378), (7563, 33912), (8478, 30252), (10084, 25434), (11304, 22689), (12717, 20168), (15126, 16956)]