681515960

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{2333}}^1$

素因数の和:2520

約数の個数: 64

約数和(自身を含む): 1571248800

約数和(自身を除く): 889732840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 109, 134, 218, 268, 335, 436, 536, 545, 670, 872, 1090, 1340, 2180, 2333, 2680, 4360, 4666, 7303, 9332, 11665, 14606, 18664, 23330, 29212, 36515, 46660, 58424, 73030, 93320, 146060, 156311, 254297, 292120, 312622, 508594, 625244, 781555, 1017188, 1250488, 1271485, 1563110, 2034376, 2542970, 3126220, 5085940, 6252440, 10171880, 17037899, 34075798, 68151596, 85189495, 136303192, 170378990, 340757980, 681515960]

約数ペア:

[(1, 681515960), (2, 340757980), (4, 170378990), (5, 136303192), (8, 85189495), (10, 68151596), (20, 34075798), (40, 17037899), (67, 10171880), (109, 6252440), (134, 5085940), (218, 3126220), (268, 2542970), (335, 2034376), (436, 1563110), (536, 1271485), (545, 1250488), (670, 1017188), (872, 781555), (1090, 625244), (1340, 508594), (2180, 312622), (2333, 292120), (2680, 254297), (4360, 156311), (4666, 146060), (7303, 93320), (9332, 73030), (11665, 58424), (14606, 46660), (18664, 36515), (23330, 29212)]