20145744

素因数分解:

$2^4\times 3^2\times {\mathrm{139901}}^1$

素因数の和:139915

約数の個数: 30

約数和(自身を含む): 56380506

約数和(自身を除く): 36234762

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 139901, 279802, 419703, 559604, 839406, 1119208, 1259109, 1678812, 2238416, 2518218, 3357624, 5036436, 6715248, 10072872, 20145744]

約数ペア:

[(1, 20145744), (2, 10072872), (3, 6715248), (4, 5036436), (6, 3357624), (8, 2518218), (9, 2238416), (12, 1678812), (16, 1259109), (18, 1119208), (24, 839406), (36, 559604), (48, 419703), (72, 279802), (144, 139901)]