90420239

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 116409960

約数和(自身を除く): 25989721

約数列:

[1, 7, 13, 49, 61, 91, 169, 179, 427, 637, 793, 1183, 1253, 2327, 2989, 5551, 8281, 8771, 10309, 10919, 16289, 30251, 38857, 72163, 76433, 114023, 141947, 211757, 505141, 535031, 993629, 1482299, 1845311, 6955403, 12917177, 90420239]

約数ペア:

[(1, 90420239), (7, 12917177), (13, 6955403), (49, 1845311), (61, 1482299), (91, 993629), (169, 535031), (179, 505141), (427, 211757), (637, 141947), (793, 114023), (1183, 76433), (1253, 72163), (2327, 38857), (2989, 30251), (5551, 16289), (8281, 10919), (8771, 10309)]