20896240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9007}}^1$

素因数の和:9049

約数の個数: 40

約数和(自身を含む): 50264640

約数和(自身を除く): 29368400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9007, 18014, 36028, 45035, 72056, 90070, 144112, 180140, 261203, 360280, 522406, 720560, 1044812, 1306015, 2089624, 2612030, 4179248, 5224060, 10448120, 20896240]

約数ペア:

[(1, 20896240), (2, 10448120), (4, 5224060), (5, 4179248), (8, 2612030), (10, 2089624), (16, 1306015), (20, 1044812), (29, 720560), (40, 522406), (58, 360280), (80, 261203), (116, 180140), (145, 144112), (232, 90070), (290, 72056), (464, 45035), (580, 36028), (1160, 18014), (2320, 9007)]