1396398220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9974273}}^1$

素因数の和:9974289

約数の個数: 24

約数和(自身を含む): 3351356064

約数和(自身を除く): 1954957844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9974273, 19948546, 39897092, 49871365, 69819911, 99742730, 139639822, 199485460, 279279644, 349099555, 698199110, 1396398220]

約数ペア:

[(1, 1396398220), (2, 698199110), (4, 349099555), (5, 279279644), (7, 199485460), (10, 139639822), (14, 99742730), (20, 69819911), (28, 49871365), (35, 39897092), (70, 19948546), (140, 9974273)]