31813180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1019}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 76769280

約数和(自身を除く): 44956100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1019, 1115, 1561, 2038, 2230, 3122, 4076, 4460, 5095, 6244, 7133, 7805, 10190, 14266, 15610, 20380, 28532, 31220, 35665, 71330, 142660, 227237, 454474, 908948, 1136185, 1590659, 2272370, 3181318, 4544740, 6362636, 7953295, 15906590, 31813180]

約数ペア:

[(1, 31813180), (2, 15906590), (4, 7953295), (5, 6362636), (7, 4544740), (10, 3181318), (14, 2272370), (20, 1590659), (28, 1136185), (35, 908948), (70, 454474), (140, 227237), (223, 142660), (446, 71330), (892, 35665), (1019, 31220), (1115, 28532), (1561, 20380), (2038, 15610), (2230, 14266), (3122, 10190), (4076, 7805), (4460, 7133), (5095, 6244)]