17912930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 20008030

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 263, 278, 490, 526, 695, 973, 1315, 1390, 1841, 1946, 2630, 3682, 4865, 6811, 9205, 9730, 12887, 13622, 18410, 25774, 34055, 36557, 64435, 68110, 73114, 128870, 182785, 255899, 365570, 511798, 1279495, 1791293, 2558990, 3582586, 8956465, 17912930]

約数ペア:

[(1, 17912930), (2, 8956465), (5, 3582586), (7, 2558990), (10, 1791293), (14, 1279495), (35, 511798), (49, 365570), (70, 255899), (98, 182785), (139, 128870), (245, 73114), (263, 68110), (278, 64435), (490, 36557), (526, 34055), (695, 25774), (973, 18410), (1315, 13622), (1390, 12887), (1841, 9730), (1946, 9205), (2630, 6811), (3682, 4865)]