208980940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10739}}^1$

素因数の和:10894

約数の個数: 48

約数和(自身を含む): 505209600

約数和(自身を除く): 296228660

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, 9730, 10739, 19460, 21478, 42956, 53695, 75173, 107390, 150346, 214780, 300692, 375865, 751730, 1492721, 1503460, 2985442, 5970884, 7463605, 10449047, 14927210, 20898094, 29854420, 41796188, 52245235, 104490470, 208980940]

約数ペア:

[(1, 208980940), (2, 104490470), (4, 52245235), (5, 41796188), (7, 29854420), (10, 20898094), (14, 14927210), (20, 10449047), (28, 7463605), (35, 5970884), (70, 2985442), (139, 1503460), (140, 1492721), (278, 751730), (556, 375865), (695, 300692), (973, 214780), (1390, 150346), (1946, 107390), (2780, 75173), (3892, 53695), (4865, 42956), (9730, 21478), (10739, 19460)]