20044880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5827}}^1$

素因数の和:5883

約数の個数: 40

約数和(自身を含む): 47696352

約数和(自身を除く): 27651472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5827, 11654, 23308, 29135, 46616, 58270, 93232, 116540, 233080, 250561, 466160, 501122, 1002244, 1252805, 2004488, 2505610, 4008976, 5011220, 10022440, 20044880]

約数ペア:

[(1, 20044880), (2, 10022440), (4, 5011220), (5, 4008976), (8, 2505610), (10, 2004488), (16, 1252805), (20, 1002244), (40, 501122), (43, 466160), (80, 250561), (86, 233080), (172, 116540), (215, 93232), (344, 58270), (430, 46616), (688, 29135), (860, 23308), (1720, 11654), (3440, 5827)]