90641680

素因数分解:

$2^4\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1319}}^1$

素因数の和:2191

約数の個数: 40

約数和(自身を含む): 211147200

約数和(自身を除く): 120505520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 859, 1319, 1718, 2638, 3436, 4295, 5276, 6595, 6872, 8590, 10552, 13190, 13744, 17180, 21104, 26380, 34360, 52760, 68720, 105520, 1133021, 2266042, 4532084, 5665105, 9064168, 11330210, 18128336, 22660420, 45320840, 90641680]

約数ペア:

[(1, 90641680), (2, 45320840), (4, 22660420), (5, 18128336), (8, 11330210), (10, 9064168), (16, 5665105), (20, 4532084), (40, 2266042), (80, 1133021), (859, 105520), (1319, 68720), (1718, 52760), (2638, 34360), (3436, 26380), (4295, 21104), (5276, 17180), (6595, 13744), (6872, 13190), (8590, 10552)]