25850420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 56351568

約数和(自身を除く): 30501148

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 181, 185, 193, 362, 370, 386, 724, 740, 772, 905, 965, 1810, 1930, 3620, 3860, 6697, 7141, 13394, 14282, 26788, 28564, 33485, 34933, 35705, 66970, 69866, 71410, 133940, 139732, 142820, 174665, 349330, 698660, 1292521, 2585042, 5170084, 6462605, 12925210, 25850420]

約数ペア:

[(1, 25850420), (2, 12925210), (4, 6462605), (5, 5170084), (10, 2585042), (20, 1292521), (37, 698660), (74, 349330), (148, 174665), (181, 142820), (185, 139732), (193, 133940), (362, 71410), (370, 69866), (386, 66970), (724, 35705), (740, 34933), (772, 33485), (905, 28564), (965, 26788), (1810, 14282), (1930, 13394), (3620, 7141), (3860, 6697)]