78248660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4021}}^1$

素因数の和:4176

約数の個数: 48

約数和(自身を含む): 189194880

約数和(自身を除く): 110946220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4021, 4865, 8042, 9730, 16084, 19460, 20105, 28147, 40210, 56294, 80420, 112588, 140735, 281470, 558919, 562940, 1117838, 2235676, 2794595, 3912433, 5589190, 7824866, 11178380, 15649732, 19562165, 39124330, 78248660]

約数ペア:

[(1, 78248660), (2, 39124330), (4, 19562165), (5, 15649732), (7, 11178380), (10, 7824866), (14, 5589190), (20, 3912433), (28, 2794595), (35, 2235676), (70, 1117838), (139, 562940), (140, 558919), (278, 281470), (556, 140735), (695, 112588), (973, 80420), (1390, 56294), (1946, 40210), (2780, 28147), (3892, 20105), (4021, 19460), (4865, 16084), (8042, 9730)]