25999820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16883}}^1$

素因数の和:16910

約数の個数: 48

約数和(自身を含む): 68076288

約数和(自身を除く): 42076468

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, 1540, 16883, 33766, 67532, 84415, 118181, 168830, 185713, 236362, 337660, 371426, 472724, 590905, 742852, 928565, 1181810, 1299991, 1857130, 2363620, 2599982, 3714260, 5199964, 6499955, 12999910, 25999820]

約数ペア:

[(1, 25999820), (2, 12999910), (4, 6499955), (5, 5199964), (7, 3714260), (10, 2599982), (11, 2363620), (14, 1857130), (20, 1299991), (22, 1181810), (28, 928565), (35, 742852), (44, 590905), (55, 472724), (70, 371426), (77, 337660), (110, 236362), (140, 185713), (154, 168830), (220, 118181), (308, 84415), (385, 67532), (770, 33766), (1540, 16883)]