1001840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1789}}^1$

素因数の和:1809

約数の個数: 40

約数和(自身を含む): 2663520

約数和(自身を除く): 1661680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1789, 3578, 7156, 8945, 12523, 14312, 17890, 25046, 28624, 35780, 50092, 62615, 71560, 100184, 125230, 143120, 200368, 250460, 500920, 1001840]

約数ペア:

[(1, 1001840), (2, 500920), (4, 250460), (5, 200368), (7, 143120), (8, 125230), (10, 100184), (14, 71560), (16, 62615), (20, 50092), (28, 35780), (35, 28624), (40, 25046), (56, 17890), (70, 14312), (80, 12523), (112, 8945), (140, 7156), (280, 3578), (560, 1789)]