2784880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{4973}}^1$

素因数の和:4993

約数の個数: 40

約数和(自身を含む): 7401312

約数和(自身を除く): 4616432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 4973, 9946, 19892, 24865, 34811, 39784, 49730, 69622, 79568, 99460, 139244, 174055, 198920, 278488, 348110, 397840, 556976, 696220, 1392440, 2784880]

約数ペア:

[(1, 2784880), (2, 1392440), (4, 696220), (5, 556976), (7, 397840), (8, 348110), (10, 278488), (14, 198920), (16, 174055), (20, 139244), (28, 99460), (35, 79568), (40, 69622), (56, 49730), (70, 39784), (80, 34811), (112, 24865), (140, 19892), (280, 9946), (560, 4973)]