19983460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3037}}^1$

素因数の和:3100

約数の個数: 48

約数和(自身を含む): 48996864

約数和(自身を除く): 29013404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3037, 3290, 6074, 6580, 12148, 15185, 21259, 30370, 42518, 60740, 85036, 106295, 142739, 212590, 285478, 425180, 570956, 713695, 999173, 1427390, 1998346, 2854780, 3996692, 4995865, 9991730, 19983460]

約数ペア:

[(1, 19983460), (2, 9991730), (4, 4995865), (5, 3996692), (7, 2854780), (10, 1998346), (14, 1427390), (20, 999173), (28, 713695), (35, 570956), (47, 425180), (70, 285478), (94, 212590), (140, 142739), (188, 106295), (235, 85036), (329, 60740), (470, 42518), (658, 30370), (940, 21259), (1316, 15185), (1645, 12148), (3037, 6580), (3290, 6074)]