20421844100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1535477}}^1$

素因数の和:1535517

約数の個数: 72

約数和(自身を含む): 53311796160

約数和(自身を除く): 32889952060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 133, 140, 175, 190, 266, 350, 380, 475, 532, 665, 700, 950, 1330, 1900, 2660, 3325, 6650, 13300, 1535477, 3070954, 6141908, 7677385, 10748339, 15354770, 21496678, 29174063, 30709540, 38386925, 42993356, 53741695, 58348126, 76773850, 107483390, 116696252, 145870315, 153547700, 204218441, 214966780, 268708475, 291740630, 408436882, 537416950, 583481260, 729351575, 816873764, 1021092205, 1074833900, 1458703150, 2042184410, 2917406300, 4084368820, 5105461025, 10210922050, 20421844100]

約数ペア:

[(1, 20421844100), (2, 10210922050), (4, 5105461025), (5, 4084368820), (7, 2917406300), (10, 2042184410), (14, 1458703150), (19, 1074833900), (20, 1021092205), (25, 816873764), (28, 729351575), (35, 583481260), (38, 537416950), (50, 408436882), (70, 291740630), (76, 268708475), (95, 214966780), (100, 204218441), (133, 153547700), (140, 145870315), (175, 116696252), (190, 107483390), (266, 76773850), (350, 58348126), (380, 53741695), (475, 42993356), (532, 38386925), (665, 30709540), (700, 29174063), (950, 21496678), (1330, 15354770), (1900, 10748339), (2660, 7677385), (3325, 6141908), (6650, 3070954), (13300, 1535477)]