20625220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34532540

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 59, 70, 77, 110, 118, 140, 154, 220, 227, 236, 295, 308, 385, 413, 454, 590, 649, 770, 826, 908, 1135, 1180, 1298, 1540, 1589, 1652, 2065, 2270, 2497, 2596, 3178, 3245, 4130, 4540, 4543, 4994, 6356, 6490, 7945, 8260, 9086, 9988, 12485, 12980, 13393, 15890, 17479, 18172, 22715, 24970, 26786, 31780, 34958, 45430, 49940, 53572, 66965, 69916, 87395, 90860, 93751, 133930, 147323, 174790, 187502, 267860, 294646, 349580, 375004, 468755, 589292, 736615, 937510, 1031261, 1473230, 1875020, 2062522, 2946460, 4125044, 5156305, 10312610, 20625220]

約数ペア:

[(1, 20625220), (2, 10312610), (4, 5156305), (5, 4125044), (7, 2946460), (10, 2062522), (11, 1875020), (14, 1473230), (20, 1031261), (22, 937510), (28, 736615), (35, 589292), (44, 468755), (55, 375004), (59, 349580), (70, 294646), (77, 267860), (110, 187502), (118, 174790), (140, 147323), (154, 133930), (220, 93751), (227, 90860), (236, 87395), (295, 69916), (308, 66965), (385, 53572), (413, 49940), (454, 45430), (590, 34958), (649, 31780), (770, 26786), (826, 24970), (908, 22715), (1135, 18172), (1180, 17479), (1298, 15890), (1540, 13393), (1589, 12980), (1652, 12485), (2065, 9988), (2270, 9086), (2497, 8260), (2596, 7945), (3178, 6490), (3245, 6356), (4130, 4994), (4540, 4543)]