244964980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21911}}^1$

素因数の和:21976

約数の個数: 48

約数和(自身を含む): 566907264

約数和(自身を除く): 321942284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 21911, 43822, 87644, 109555, 219110, 284843, 438220, 569686, 942173, 1139372, 1424215, 1884346, 2848430, 3768692, 4710865, 5696860, 9421730, 12248249, 18843460, 24496498, 48992996, 61241245, 122482490, 244964980]

約数ペア:

[(1, 244964980), (2, 122482490), (4, 61241245), (5, 48992996), (10, 24496498), (13, 18843460), (20, 12248249), (26, 9421730), (43, 5696860), (52, 4710865), (65, 3768692), (86, 2848430), (130, 1884346), (172, 1424215), (215, 1139372), (260, 942173), (430, 569686), (559, 438220), (860, 284843), (1118, 219110), (2236, 109555), (2795, 87644), (5590, 43822), (11180, 21911)]