639634562

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{2309}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 1122992640

約数和(自身を除く): 483358078

約数列:

[1, 2, 7, 14, 47, 94, 329, 421, 658, 842, 2309, 2947, 4618, 5894, 16163, 19787, 32326, 39574, 108523, 138509, 217046, 277018, 759661, 972089, 1519322, 1944178, 6804623, 13609246, 45688183, 91376366, 319817281, 639634562]

約数ペア:

[(1, 639634562), (2, 319817281), (7, 91376366), (14, 45688183), (47, 13609246), (94, 6804623), (329, 1944178), (421, 1519322), (658, 972089), (842, 759661), (2309, 277018), (2947, 217046), (4618, 138509), (5894, 108523), (16163, 39574), (19787, 32326)]