61668740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3169}}^1$

素因数の和:3324

約数の個数: 48

約数和(自身を含む): 149116800

約数和(自身を除く): 87448060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3169, 3892, 4865, 6338, 9730, 12676, 15845, 19460, 22183, 31690, 44366, 63380, 88732, 110915, 221830, 440491, 443660, 880982, 1761964, 2202455, 3083437, 4404910, 6166874, 8809820, 12333748, 15417185, 30834370, 61668740]

約数ペア:

[(1, 61668740), (2, 30834370), (4, 15417185), (5, 12333748), (7, 8809820), (10, 6166874), (14, 4404910), (20, 3083437), (28, 2202455), (35, 1761964), (70, 880982), (139, 443660), (140, 440491), (278, 221830), (556, 110915), (695, 88732), (973, 63380), (1390, 44366), (1946, 31690), (2780, 22183), (3169, 19460), (3892, 15845), (4865, 12676), (6338, 9730)]