221275325

素因数分解:

$5^2\times {\mathrm{179}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 278419680

約数和(自身を除く): 57144355

約数列:

[1, 5, 25, 179, 197, 251, 895, 985, 1255, 4475, 4925, 6275, 35263, 44929, 49447, 176315, 224645, 247235, 881575, 1123225, 1236175, 8851013, 44255065, 221275325]

約数ペア:

[(1, 221275325), (5, 44255065), (25, 8851013), (179, 1236175), (197, 1123225), (251, 881575), (895, 247235), (985, 224645), (1255, 176315), (4475, 49447), (4925, 44929), (6275, 35263)]