208515868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 411231744

約数和(自身を除く): 202715876

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 263, 407, 487, 526, 814, 974, 1052, 1628, 1948, 2893, 5357, 5786, 9731, 10714, 11572, 18019, 19462, 21428, 36038, 38924, 72076, 107041, 128081, 198209, 214082, 256162, 396418, 428164, 512324, 792836, 1408891, 2817782, 4738997, 5635564, 9477994, 18955988, 52128967, 104257934, 208515868]

約数ペア:

[(1, 208515868), (2, 104257934), (4, 52128967), (11, 18955988), (22, 9477994), (37, 5635564), (44, 4738997), (74, 2817782), (148, 1408891), (263, 792836), (407, 512324), (487, 428164), (526, 396418), (814, 256162), (974, 214082), (1052, 198209), (1628, 128081), (1948, 107041), (2893, 72076), (5357, 38924), (5786, 36038), (9731, 21428), (10714, 19462), (11572, 18019)]