25724140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98939}}^1$

素因数の和:98961

約数の個数: 24

約数和(自身を含む): 58176720

約数和(自身を除く): 32452580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 98939, 197878, 395756, 494695, 989390, 1286207, 1978780, 2572414, 5144828, 6431035, 12862070, 25724140]

約数ペア:

[(1, 25724140), (2, 12862070), (4, 6431035), (5, 5144828), (10, 2572414), (13, 1978780), (20, 1286207), (26, 989390), (52, 494695), (65, 395756), (130, 197878), (260, 98939)]