78126440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279023}}^1$

素因数の和:279041

約数の個数: 32

約数和(自身を含む): 200897280

約数和(自身を除く): 122770840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279023, 558046, 1116092, 1395115, 1953161, 2232184, 2790230, 3906322, 5580460, 7812644, 9765805, 11160920, 15625288, 19531610, 39063220, 78126440]

約数ペア:

[(1, 78126440), (2, 39063220), (4, 19531610), (5, 15625288), (7, 11160920), (8, 9765805), (10, 7812644), (14, 5580460), (20, 3906322), (28, 2790230), (35, 2232184), (40, 1953161), (56, 1395115), (70, 1116092), (140, 558046), (280, 279023)]