1385621440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{618581}}^1$

素因数の和:618605

約数の個数: 56

約数和(自身を含む): 3770875872

約数和(自身を除く): 2385254432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 618581, 1237162, 2474324, 3092905, 4330067, 4948648, 6185810, 8660134, 9897296, 12371620, 17320268, 19794592, 21650335, 24743240, 34640536, 39589184, 43300670, 49486480, 69281072, 86601340, 98972960, 138562144, 173202680, 197945920, 277124288, 346405360, 692810720, 1385621440]

約数ペア:

[(1, 1385621440), (2, 692810720), (4, 346405360), (5, 277124288), (7, 197945920), (8, 173202680), (10, 138562144), (14, 98972960), (16, 86601340), (20, 69281072), (28, 49486480), (32, 43300670), (35, 39589184), (40, 34640536), (56, 24743240), (64, 21650335), (70, 19794592), (80, 17320268), (112, 12371620), (140, 9897296), (160, 8660134), (224, 6185810), (280, 4948648), (320, 4330067), (448, 3092905), (560, 2474324), (1120, 1237162), (2240, 618581)]