17844820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 44241120

約数和(自身を除く): 26396300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 139, 140, 196, 245, 262, 278, 490, 524, 556, 655, 695, 917, 973, 980, 1310, 1390, 1834, 1946, 2620, 2780, 3668, 3892, 4585, 4865, 6419, 6811, 9170, 9730, 12838, 13622, 18209, 18340, 19460, 25676, 27244, 32095, 34055, 36418, 64190, 68110, 72836, 91045, 127463, 128380, 136220, 182090, 254926, 364180, 509852, 637315, 892241, 1274630, 1784482, 2549260, 3568964, 4461205, 8922410, 17844820]

約数ペア:

[(1, 17844820), (2, 8922410), (4, 4461205), (5, 3568964), (7, 2549260), (10, 1784482), (14, 1274630), (20, 892241), (28, 637315), (35, 509852), (49, 364180), (70, 254926), (98, 182090), (131, 136220), (139, 128380), (140, 127463), (196, 91045), (245, 72836), (262, 68110), (278, 64190), (490, 36418), (524, 34055), (556, 32095), (655, 27244), (695, 25676), (917, 19460), (973, 18340), (980, 18209), (1310, 13622), (1390, 12838), (1834, 9730), (1946, 9170), (2620, 6811), (2780, 6419), (3668, 4865), (3892, 4585)]