1581440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{353}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 4332960

約数和(自身を除く): 2751520

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, 280, 320, 353, 448, 560, 640, 706, 896, 1120, 1412, 1765, 2240, 2471, 2824, 3530, 4480, 4942, 5648, 7060, 9884, 11296, 12355, 14120, 19768, 22592, 24710, 28240, 39536, 45184, 49420, 56480, 79072, 98840, 112960, 158144, 197680, 225920, 316288, 395360, 790720, 1581440]

約数ペア:

[(1, 1581440), (2, 790720), (4, 395360), (5, 316288), (7, 225920), (8, 197680), (10, 158144), (14, 112960), (16, 98840), (20, 79072), (28, 56480), (32, 49420), (35, 45184), (40, 39536), (56, 28240), (64, 24710), (70, 22592), (80, 19768), (112, 14120), (128, 12355), (140, 11296), (160, 9884), (224, 7060), (280, 5648), (320, 4942), (353, 4480), (448, 3530), (560, 2824), (640, 2471), (706, 2240), (896, 1765), (1120, 1412)]