1559769520

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{39709}}^1$

素因数の和:40213

約数の個数: 40

約数和(自身を含む): 3633941520

約数和(自身を除く): 2074172000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 39709, 79418, 158836, 198545, 317672, 397090, 635344, 794180, 1588360, 3176720, 19497119, 38994238, 77988476, 97485595, 155976952, 194971190, 311953904, 389942380, 779884760, 1559769520]

約数ペア:

[(1, 1559769520), (2, 779884760), (4, 389942380), (5, 311953904), (8, 194971190), (10, 155976952), (16, 97485595), (20, 77988476), (40, 38994238), (80, 19497119), (491, 3176720), (982, 1588360), (1964, 794180), (2455, 635344), (3928, 397090), (4910, 317672), (7856, 198545), (9820, 158836), (19640, 79418), (39280, 39709)]