28030420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1237}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 64891008

約数和(自身を除く): 36860588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 1237, 2060, 2266, 2474, 4532, 4948, 5665, 6185, 11330, 12370, 13607, 22660, 24740, 27214, 54428, 68035, 127411, 136070, 254822, 272140, 509644, 637055, 1274110, 1401521, 2548220, 2803042, 5606084, 7007605, 14015210, 28030420]

約数ペア:

[(1, 28030420), (2, 14015210), (4, 7007605), (5, 5606084), (10, 2803042), (11, 2548220), (20, 1401521), (22, 1274110), (44, 637055), (55, 509644), (103, 272140), (110, 254822), (206, 136070), (220, 127411), (412, 68035), (515, 54428), (1030, 27214), (1133, 24740), (1237, 22660), (2060, 13607), (2266, 12370), (2474, 11330), (4532, 6185), (4948, 5665)]