1975820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1283}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 5177088

約数和(自身を除く): 3201268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1283, 1540, 2566, 5132, 6415, 8981, 12830, 14113, 17962, 25660, 28226, 35924, 44905, 56452, 70565, 89810, 98791, 141130, 179620, 197582, 282260, 395164, 493955, 987910, 1975820]

約数ペア:

[(1, 1975820), (2, 987910), (4, 493955), (5, 395164), (7, 282260), (10, 197582), (11, 179620), (14, 141130), (20, 98791), (22, 89810), (28, 70565), (35, 56452), (44, 44905), (55, 35924), (70, 28226), (77, 25660), (110, 17962), (140, 14113), (154, 12830), (220, 8981), (308, 6415), (385, 5132), (770, 2566), (1283, 1540)]