254798570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{4937}}^1$

素因数の和:5354

約数の個数: 32

約数和(自身を含む): 495261648

約数和(自身を除く): 240463078

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1985, 3970, 4937, 5161, 9874, 10322, 24685, 25805, 49370, 51610, 64181, 128362, 320905, 641810, 1959989, 3919978, 9799945, 19599890, 25479857, 50959714, 127399285, 254798570]

約数ペア:

[(1, 254798570), (2, 127399285), (5, 50959714), (10, 25479857), (13, 19599890), (26, 9799945), (65, 3919978), (130, 1959989), (397, 641810), (794, 320905), (1985, 128362), (3970, 64181), (4937, 51610), (5161, 49370), (9874, 25805), (10322, 24685)]