81781504

素因数分解:

$2^8\times 7^1\times {\mathrm{47}}^1\times {\mathrm{971}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 190729728

約数和(自身を除く): 108948224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 256, 329, 376, 448, 658, 752, 896, 971, 1316, 1504, 1792, 1942, 2632, 3008, 3884, 5264, 6016, 6797, 7768, 10528, 12032, 13594, 15536, 21056, 27188, 31072, 42112, 45637, 54376, 62144, 84224, 91274, 108752, 124288, 182548, 217504, 248576, 319459, 365096, 435008, 638918, 730192, 870016, 1277836, 1460384, 1740032, 2555672, 2920768, 5111344, 5841536, 10222688, 11683072, 20445376, 40890752, 81781504]

約数ペア:

[(1, 81781504), (2, 40890752), (4, 20445376), (7, 11683072), (8, 10222688), (14, 5841536), (16, 5111344), (28, 2920768), (32, 2555672), (47, 1740032), (56, 1460384), (64, 1277836), (94, 870016), (112, 730192), (128, 638918), (188, 435008), (224, 365096), (256, 319459), (329, 248576), (376, 217504), (448, 182548), (658, 124288), (752, 108752), (896, 91274), (971, 84224), (1316, 62144), (1504, 54376), (1792, 45637), (1942, 42112), (2632, 31072), (3008, 27188), (3884, 21056), (5264, 15536), (6016, 13594), (6797, 12032), (7768, 10528)]