12742940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13003}}^1$

素因数の和:13026

約数の個数: 36

約数和(自身を含む): 31131576

約数和(自身を除く): 18388636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13003, 26006, 52012, 65015, 91021, 130030, 182042, 260060, 364084, 455105, 637147, 910210, 1274294, 1820420, 2548588, 3185735, 6371470, 12742940]

約数ペア:

[(1, 12742940), (2, 6371470), (4, 3185735), (5, 2548588), (7, 1820420), (10, 1274294), (14, 910210), (20, 637147), (28, 455105), (35, 364084), (49, 260060), (70, 182042), (98, 130030), (140, 91021), (196, 65015), (245, 52012), (490, 26006), (980, 13003)]