20050128

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19891}}^1$

素因数の和:19912

約数の個数: 60

約数和(自身を含む): 64131808

約数和(自身を除く): 44081680

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 19891, 39782, 59673, 79564, 119346, 139237, 159128, 179019, 238692, 278474, 318256, 358038, 417711, 477384, 556948, 716076, 835422, 954768, 1113896, 1253133, 1432152, 1670844, 2227792, 2506266, 2864304, 3341688, 5012532, 6683376, 10025064, 20050128]

約数ペア:

[(1, 20050128), (2, 10025064), (3, 6683376), (4, 5012532), (6, 3341688), (7, 2864304), (8, 2506266), (9, 2227792), (12, 1670844), (14, 1432152), (16, 1253133), (18, 1113896), (21, 954768), (24, 835422), (28, 716076), (36, 556948), (42, 477384), (48, 417711), (56, 358038), (63, 318256), (72, 278474), (84, 238692), (112, 179019), (126, 159128), (144, 139237), (168, 119346), (252, 79564), (336, 59673), (504, 39782), (1008, 19891)]