39903640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20359}}^1$

素因数の和:20384

約数の個数: 48

約数和(自身を含む): 104446800

約数和(自身を除く): 64543160

約数列:

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

約数ペア:

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