19510540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139361}}^1$

素因数の和:139377

約数の個数: 24

約数和(自身を含む): 46825632

約数和(自身を除く): 27315092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139361, 278722, 557444, 696805, 975527, 1393610, 1951054, 2787220, 3902108, 4877635, 9755270, 19510540]

約数ペア:

[(1, 19510540), (2, 9755270), (4, 4877635), (5, 3902108), (7, 2787220), (10, 1951054), (14, 1393610), (20, 975527), (28, 696805), (35, 557444), (70, 278722), (140, 139361)]