20787543616

素因数分解:

$2^6\times 7^2\times {\mathrm{883}}^1\times {\mathrm{7507}}^1$

素因数の和:8416

約数の個数: 84

約数和(自身を含む): 48045764208

約数和(自身を除く): 27258220592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 883, 1568, 1766, 3136, 3532, 6181, 7064, 7507, 12362, 14128, 15014, 24724, 28256, 30028, 43267, 49448, 52549, 56512, 60056, 86534, 98896, 105098, 120112, 173068, 197792, 210196, 240224, 346136, 367843, 395584, 420392, 480448, 692272, 735686, 840784, 1384544, 1471372, 1681568, 2769088, 2942744, 3363136, 5885488, 6628681, 11770976, 13257362, 23541952, 26514724, 46400767, 53029448, 92801534, 106058896, 185603068, 212117792, 324805369, 371206136, 424235584, 649610738, 742412272, 1299221476, 1484824544, 2598442952, 2969649088, 5196885904, 10393771808, 20787543616]

約数ペア:

[(1, 20787543616), (2, 10393771808), (4, 5196885904), (7, 2969649088), (8, 2598442952), (14, 1484824544), (16, 1299221476), (28, 742412272), (32, 649610738), (49, 424235584), (56, 371206136), (64, 324805369), (98, 212117792), (112, 185603068), (196, 106058896), (224, 92801534), (392, 53029448), (448, 46400767), (784, 26514724), (883, 23541952), (1568, 13257362), (1766, 11770976), (3136, 6628681), (3532, 5885488), (6181, 3363136), (7064, 2942744), (7507, 2769088), (12362, 1681568), (14128, 1471372), (15014, 1384544), (24724, 840784), (28256, 735686), (30028, 692272), (43267, 480448), (49448, 420392), (52549, 395584), (56512, 367843), (60056, 346136), (86534, 240224), (98896, 210196), (105098, 197792), (120112, 173068)]