806680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 2154240

約数和(自身を除く): 1347560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 67, 70, 86, 134, 140, 172, 215, 268, 280, 301, 335, 344, 430, 469, 536, 602, 670, 860, 938, 1204, 1340, 1505, 1720, 1876, 2345, 2408, 2680, 2881, 3010, 3752, 4690, 5762, 6020, 9380, 11524, 12040, 14405, 18760, 20167, 23048, 28810, 40334, 57620, 80668, 100835, 115240, 161336, 201670, 403340, 806680]

約数ペア:

[(1, 806680), (2, 403340), (4, 201670), (5, 161336), (7, 115240), (8, 100835), (10, 80668), (14, 57620), (20, 40334), (28, 28810), (35, 23048), (40, 20167), (43, 18760), (56, 14405), (67, 12040), (70, 11524), (86, 9380), (134, 6020), (140, 5762), (172, 4690), (215, 3752), (268, 3010), (280, 2881), (301, 2680), (335, 2408), (344, 2345), (430, 1876), (469, 1720), (536, 1505), (602, 1340), (670, 1204), (860, 938)]