79807280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{20359}}^1$

素因数の和:20386

約数の個数: 60

約数和(自身を含む): 215856720

約数和(自身を除く): 136049440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 20359, 40718, 81436, 101795, 142513, 162872, 203590, 285026, 325744, 407180, 570052, 712565, 814360, 997591, 1140104, 1425130, 1628720, 1995182, 2280208, 2850260, 3990364, 4987955, 5700520, 7980728, 9975910, 11401040, 15961456, 19951820, 39903640, 79807280]

約数ペア:

[(1, 79807280), (2, 39903640), (4, 19951820), (5, 15961456), (7, 11401040), (8, 9975910), (10, 7980728), (14, 5700520), (16, 4987955), (20, 3990364), (28, 2850260), (35, 2280208), (40, 1995182), (49, 1628720), (56, 1425130), (70, 1140104), (80, 997591), (98, 814360), (112, 712565), (140, 570052), (196, 407180), (245, 325744), (280, 285026), (392, 203590), (490, 162872), (560, 142513), (784, 101795), (980, 81436), (1960, 40718), (3920, 20359)]