20443760

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{607}}^1$

素因数の和:1041

約数の個数: 40

約数和(自身を含む): 47723136

約数和(自身を除く): 27279376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 607, 842, 1214, 1684, 2105, 2428, 3035, 3368, 4210, 4856, 6070, 6736, 8420, 9712, 12140, 16840, 24280, 33680, 48560, 255547, 511094, 1022188, 1277735, 2044376, 2555470, 4088752, 5110940, 10221880, 20443760]

約数ペア:

[(1, 20443760), (2, 10221880), (4, 5110940), (5, 4088752), (8, 2555470), (10, 2044376), (16, 1277735), (20, 1022188), (40, 511094), (80, 255547), (421, 48560), (607, 33680), (842, 24280), (1214, 16840), (1684, 12140), (2105, 9712), (2428, 8420), (3035, 6736), (3368, 6070), (4210, 4856)]