254141440

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{1013}}^1$

素因数の和:1052

約数の個数: 132

約数和(自身を含む): 709875036

約数和(自身を除く): 455733596

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1013, 1024, 1120, 1280, 1568, 1792, 1960, 2026, 2240, 2560, 3136, 3584, 3920, 4052, 4480, 5065, 5120, 6272, 7091, 7168, 7840, 8104, 8960, 10130, 12544, 14182, 15680, 16208, 17920, 20260, 25088, 28364, 31360, 32416, 35455, 35840, 40520, 49637, 50176, 56728, 62720, 64832, 70910, 81040, 99274, 113456, 125440, 129664, 141820, 162080, 198548, 226912, 248185, 250880, 259328, 283640, 324160, 397096, 453824, 496370, 518656, 567280, 648320, 794192, 907648, 992740, 1037312, 1134560, 1296640, 1588384, 1815296, 1985480, 2269120, 2593280, 3176768, 3630592, 3970960, 4538240, 5186560, 6353536, 7261184, 7941920, 9076480, 12707072, 15883840, 18152960, 25414144, 31767680, 36305920, 50828288, 63535360, 127070720, 254141440]

約数ペア:

[(1, 254141440), (2, 127070720), (4, 63535360), (5, 50828288), (7, 36305920), (8, 31767680), (10, 25414144), (14, 18152960), (16, 15883840), (20, 12707072), (28, 9076480), (32, 7941920), (35, 7261184), (40, 6353536), (49, 5186560), (56, 4538240), (64, 3970960), (70, 3630592), (80, 3176768), (98, 2593280), (112, 2269120), (128, 1985480), (140, 1815296), (160, 1588384), (196, 1296640), (224, 1134560), (245, 1037312), (256, 992740), (280, 907648), (320, 794192), (392, 648320), (448, 567280), (490, 518656), (512, 496370), (560, 453824), (640, 397096), (784, 324160), (896, 283640), (980, 259328), (1013, 250880), (1024, 248185), (1120, 226912), (1280, 198548), (1568, 162080), (1792, 141820), (1960, 129664), (2026, 125440), (2240, 113456), (2560, 99274), (3136, 81040), (3584, 70910), (3920, 64832), (4052, 62720), (4480, 56728), (5065, 50176), (5120, 49637), (6272, 40520), (7091, 35840), (7168, 35455), (7840, 32416), (8104, 31360), (8960, 28364), (10130, 25088), (12544, 20260), (14182, 17920), (15680, 16208)]