144840920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{517289}}^1$

素因数の和:517307

約数の個数: 32

約数和(自身を含む): 372448800

約数和(自身を除く): 227607880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 517289, 1034578, 2069156, 2586445, 3621023, 4138312, 5172890, 7242046, 10345780, 14484092, 18105115, 20691560, 28968184, 36210230, 72420460, 144840920]

約数ペア:

[(1, 144840920), (2, 72420460), (4, 36210230), (5, 28968184), (7, 20691560), (8, 18105115), (10, 14484092), (14, 10345780), (20, 7242046), (28, 5172890), (35, 4138312), (40, 3621023), (56, 2586445), (70, 2069156), (140, 1034578), (280, 517289)]