720104140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{47189}}^1$

素因数の和:47314

約数の個数: 48

約数和(自身を含む): 1744142400

約数和(自身を除く): 1024038260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 47189, 94378, 188756, 235945, 330323, 471890, 660646, 943780, 1321292, 1651615, 3303230, 5143601, 6606460, 10287202, 20574404, 25718005, 36005207, 51436010, 72010414, 102872020, 144020828, 180026035, 360052070, 720104140]

約数ペア:

[(1, 720104140), (2, 360052070), (4, 180026035), (5, 144020828), (7, 102872020), (10, 72010414), (14, 51436010), (20, 36005207), (28, 25718005), (35, 20574404), (70, 10287202), (109, 6606460), (140, 5143601), (218, 3303230), (436, 1651615), (545, 1321292), (763, 943780), (1090, 660646), (1526, 471890), (2180, 330323), (3052, 235945), (3815, 188756), (7630, 94378), (15260, 47189)]