20147394875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3257}}^1$

素因数の和:3401

約数の個数: 64

約数和(自身を含む): 27664955136

約数和(自身を除く): 7517560261

約数列:

[1, 5, 17, 25, 41, 71, 85, 125, 205, 355, 425, 697, 1025, 1207, 1775, 2125, 2911, 3257, 3485, 5125, 6035, 8875, 14555, 16285, 17425, 30175, 49487, 55369, 72775, 81425, 87125, 133537, 150875, 231247, 247435, 276845, 363875, 407125, 667685, 1156235, 1237175, 1384225, 2270129, 3338425, 3931199, 5781175, 6185875, 6921125, 9481127, 11350645, 16692125, 19655995, 28905875, 47405635, 56753225, 98279975, 161179159, 237028175, 283766125, 491399875, 805895795, 1185140875, 4029478975, 20147394875]

約数ペア:

[(1, 20147394875), (5, 4029478975), (17, 1185140875), (25, 805895795), (41, 491399875), (71, 283766125), (85, 237028175), (125, 161179159), (205, 98279975), (355, 56753225), (425, 47405635), (697, 28905875), (1025, 19655995), (1207, 16692125), (1775, 11350645), (2125, 9481127), (2911, 6921125), (3257, 6185875), (3485, 5781175), (5125, 3931199), (6035, 3338425), (8875, 2270129), (14555, 1384225), (16285, 1237175), (17425, 1156235), (30175, 667685), (49487, 407125), (55369, 363875), (72775, 276845), (81425, 247435), (87125, 231247), (133537, 150875)]