13204520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6737}}^1$

素因数の和:6762

約数の個数: 48

約数和(自身を含む): 34565940

約数和(自身を除く): 21361420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6737, 13474, 26948, 33685, 47159, 53896, 67370, 94318, 134740, 188636, 235795, 269480, 330113, 377272, 471590, 660226, 943180, 1320452, 1650565, 1886360, 2640904, 3301130, 6602260, 13204520]

約数ペア:

[(1, 13204520), (2, 6602260), (4, 3301130), (5, 2640904), (7, 1886360), (8, 1650565), (10, 1320452), (14, 943180), (20, 660226), (28, 471590), (35, 377272), (40, 330113), (49, 269480), (56, 235795), (70, 188636), (98, 134740), (140, 94318), (196, 67370), (245, 53896), (280, 47159), (392, 33685), (490, 26948), (980, 13474), (1960, 6737)]