161848820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8317}}^1$

素因数の和:8472

約数の個数: 48

約数和(自身を含む): 391278720

約数和(自身を除く): 229429900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 8317, 9730, 16634, 19460, 33268, 41585, 58219, 83170, 116438, 166340, 232876, 291095, 582190, 1156063, 1164380, 2312126, 4624252, 5780315, 8092441, 11560630, 16184882, 23121260, 32369764, 40462205, 80924410, 161848820]

約数ペア:

[(1, 161848820), (2, 80924410), (4, 40462205), (5, 32369764), (7, 23121260), (10, 16184882), (14, 11560630), (20, 8092441), (28, 5780315), (35, 4624252), (70, 2312126), (139, 1164380), (140, 1156063), (278, 582190), (556, 291095), (695, 232876), (973, 166340), (1390, 116438), (1946, 83170), (2780, 58219), (3892, 41585), (4865, 33268), (8317, 19460), (9730, 16634)]