51571240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2749}}^1$

素因数の和:2834

約数の個数: 64

約数和(自身を含む): 134640000

約数和(自身を除く): 83068760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 2749, 3752, 4690, 5498, 9380, 10996, 13745, 18760, 19243, 21992, 27490, 38486, 54980, 76972, 96215, 109960, 153944, 184183, 192430, 368366, 384860, 736732, 769720, 920915, 1289281, 1473464, 1841830, 2578562, 3683660, 5157124, 6446405, 7367320, 10314248, 12892810, 25785620, 51571240]

約数ペア:

[(1, 51571240), (2, 25785620), (4, 12892810), (5, 10314248), (7, 7367320), (8, 6446405), (10, 5157124), (14, 3683660), (20, 2578562), (28, 1841830), (35, 1473464), (40, 1289281), (56, 920915), (67, 769720), (70, 736732), (134, 384860), (140, 368366), (268, 192430), (280, 184183), (335, 153944), (469, 109960), (536, 96215), (670, 76972), (938, 54980), (1340, 38486), (1876, 27490), (2345, 21992), (2680, 19243), (2749, 18760), (3752, 13745), (4690, 10996), (5498, 9380)]