639086336

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5023}}^1$

素因数の和:5117

約数の個数: 72

約数和(自身を含む): 1478744064

約数和(自身を除く): 839657728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 256, 284, 448, 497, 568, 896, 994, 1136, 1792, 1988, 2272, 3976, 4544, 5023, 7952, 9088, 10046, 15904, 18176, 20092, 31808, 35161, 40184, 63616, 70322, 80368, 127232, 140644, 160736, 281288, 321472, 356633, 562576, 642944, 713266, 1125152, 1285888, 1426532, 2250304, 2496431, 2853064, 4500608, 4992862, 5706128, 9001216, 9985724, 11412256, 19971448, 22824512, 39942896, 45649024, 79885792, 91298048, 159771584, 319543168, 639086336]

約数ペア:

[(1, 639086336), (2, 319543168), (4, 159771584), (7, 91298048), (8, 79885792), (14, 45649024), (16, 39942896), (28, 22824512), (32, 19971448), (56, 11412256), (64, 9985724), (71, 9001216), (112, 5706128), (128, 4992862), (142, 4500608), (224, 2853064), (256, 2496431), (284, 2250304), (448, 1426532), (497, 1285888), (568, 1125152), (896, 713266), (994, 642944), (1136, 562576), (1792, 356633), (1988, 321472), (2272, 281288), (3976, 160736), (4544, 140644), (5023, 127232), (7952, 80368), (9088, 70322), (10046, 63616), (15904, 40184), (18176, 35161), (20092, 31808)]