78080240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139429}}^1$

素因数の和:139449

約数の個数: 40

約数和(自身を含む): 207471840

約数和(自身を除く): 129391600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139429, 278858, 557716, 697145, 976003, 1115432, 1394290, 1952006, 2230864, 2788580, 3904012, 4880015, 5577160, 7808024, 9760030, 11154320, 15616048, 19520060, 39040120, 78080240]

約数ペア:

[(1, 78080240), (2, 39040120), (4, 19520060), (5, 15616048), (7, 11154320), (8, 9760030), (10, 7808024), (14, 5577160), (16, 4880015), (20, 3904012), (28, 2788580), (35, 2230864), (40, 1952006), (56, 1394290), (70, 1115432), (80, 976003), (112, 697145), (140, 557716), (280, 278858), (560, 139429)]