51317120

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 123636240

約数和(自身を除く): 72319120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 320, 362, 443, 640, 724, 886, 905, 1448, 1772, 1810, 2215, 2896, 3544, 3620, 4430, 5792, 7088, 7240, 8860, 11584, 14176, 14480, 17720, 23168, 28352, 28960, 35440, 56704, 57920, 70880, 80183, 115840, 141760, 160366, 283520, 320732, 400915, 641464, 801830, 1282928, 1603660, 2565856, 3207320, 5131712, 6414640, 10263424, 12829280, 25658560, 51317120]

約数ペア:

[(1, 51317120), (2, 25658560), (4, 12829280), (5, 10263424), (8, 6414640), (10, 5131712), (16, 3207320), (20, 2565856), (32, 1603660), (40, 1282928), (64, 801830), (80, 641464), (128, 400915), (160, 320732), (181, 283520), (320, 160366), (362, 141760), (443, 115840), (640, 80183), (724, 70880), (886, 57920), (905, 56704), (1448, 35440), (1772, 28960), (1810, 28352), (2215, 23168), (2896, 17720), (3544, 14480), (3620, 14176), (4430, 11584), (5792, 8860), (7088, 7240)]