208519808

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4391}}^1$

素因数の和:4465

約数の個数: 64

約数和(自身を含む): 483822720

約数和(自身を除く): 275302912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 448, 742, 848, 896, 1484, 1696, 2968, 3392, 4391, 5936, 6784, 8782, 11872, 17564, 23744, 30737, 35128, 47488, 61474, 70256, 122948, 140512, 232723, 245896, 281024, 465446, 491792, 562048, 930892, 983584, 1629061, 1861784, 1967168, 3258122, 3723568, 3934336, 6516244, 7447136, 13032488, 14894272, 26064976, 29788544, 52129952, 104259904, 208519808]

約数ペア:

[(1, 208519808), (2, 104259904), (4, 52129952), (7, 29788544), (8, 26064976), (14, 14894272), (16, 13032488), (28, 7447136), (32, 6516244), (53, 3934336), (56, 3723568), (64, 3258122), (106, 1967168), (112, 1861784), (128, 1629061), (212, 983584), (224, 930892), (371, 562048), (424, 491792), (448, 465446), (742, 281024), (848, 245896), (896, 232723), (1484, 140512), (1696, 122948), (2968, 70256), (3392, 61474), (4391, 47488), (5936, 35128), (6784, 30737), (8782, 23744), (11872, 17564)]