256229120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{28597}}^1$

素因数の和:28625

約数の個数: 72

約数和(自身を含む): 701451744

約数和(自身を除く): 445222624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 28597, 57194, 114388, 142985, 200179, 228776, 285970, 400358, 457552, 571940, 800716, 915104, 1000895, 1143880, 1601432, 1830208, 2001790, 2287760, 3202864, 3660416, 4003580, 4575520, 6405728, 7320832, 8007160, 9151040, 12811456, 16014320, 18302080, 25622912, 32028640, 36604160, 51245824, 64057280, 128114560, 256229120]

約数ペア:

[(1, 256229120), (2, 128114560), (4, 64057280), (5, 51245824), (7, 36604160), (8, 32028640), (10, 25622912), (14, 18302080), (16, 16014320), (20, 12811456), (28, 9151040), (32, 8007160), (35, 7320832), (40, 6405728), (56, 4575520), (64, 4003580), (70, 3660416), (80, 3202864), (112, 2287760), (128, 2001790), (140, 1830208), (160, 1601432), (224, 1143880), (256, 1000895), (280, 915104), (320, 800716), (448, 571940), (560, 457552), (640, 400358), (896, 285970), (1120, 228776), (1280, 200179), (1792, 142985), (2240, 114388), (4480, 57194), (8960, 28597)]