1398460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1427}}^1$

素因数の和:1450

約数の個数: 36

約数和(自身を含む): 3418632

約数和(自身を除く): 2020172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1427, 2854, 5708, 7135, 9989, 14270, 19978, 28540, 39956, 49945, 69923, 99890, 139846, 199780, 279692, 349615, 699230, 1398460]

約数ペア:

[(1, 1398460), (2, 699230), (4, 349615), (5, 279692), (7, 199780), (10, 139846), (14, 99890), (20, 69923), (28, 49945), (35, 39956), (49, 28540), (70, 19978), (98, 14270), (140, 9989), (196, 7135), (245, 5708), (490, 2854), (980, 1427)]