1288492780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1\times {\mathrm{2693}}^1$

素因数の和:3258

約数の個数: 48

約数和(自身を含む): 2769863040

約数和(自身を除く): 1481370260

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 509, 940, 1018, 2036, 2545, 2693, 5090, 5386, 10180, 10772, 13465, 23923, 26930, 47846, 53860, 95692, 119615, 126571, 239230, 253142, 478460, 506284, 632855, 1265710, 1370737, 2531420, 2741474, 5482948, 6853685, 13707370, 27414740, 64424639, 128849278, 257698556, 322123195, 644246390, 1288492780]

約数ペア:

[(1, 1288492780), (2, 644246390), (4, 322123195), (5, 257698556), (10, 128849278), (20, 64424639), (47, 27414740), (94, 13707370), (188, 6853685), (235, 5482948), (470, 2741474), (509, 2531420), (940, 1370737), (1018, 1265710), (2036, 632855), (2545, 506284), (2693, 478460), (5090, 253142), (5386, 239230), (10180, 126571), (10772, 119615), (13465, 95692), (23923, 53860), (26930, 47846)]