49215220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 107110080

約数和(自身を除く): 57894860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 643, 860, 890, 1286, 1780, 2572, 3215, 3827, 6430, 7654, 12860, 15308, 19135, 27649, 38270, 55298, 57227, 76540, 110596, 114454, 138245, 228908, 276490, 286135, 552980, 572270, 1144540, 2460761, 4921522, 9843044, 12303805, 24607610, 49215220]

約数ペア:

[(1, 49215220), (2, 24607610), (4, 12303805), (5, 9843044), (10, 4921522), (20, 2460761), (43, 1144540), (86, 572270), (89, 552980), (172, 286135), (178, 276490), (215, 228908), (356, 138245), (430, 114454), (445, 110596), (643, 76540), (860, 57227), (890, 55298), (1286, 38270), (1780, 27649), (2572, 19135), (3215, 15308), (3827, 12860), (6430, 7654)]